Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Tip revision: 02d1db9f46f2c9de879536206028a62d1a3f7bea authored by Larry Hastings on 29 March 2015, 22:34:26 UTC
Release bump for Python 3.5.0a3.
Release bump for Python 3.5.0a3.
Tip revision: 02d1db9
test_tokenize.py
doctests = """
Tests for the tokenize module.
The tests can be really simple. Given a small fragment of source
code, print out a table with tokens. The ENDMARKER is omitted for
brevity.
>>> dump_tokens("1 + 1")
ENCODING 'utf-8' (0, 0) (0, 0)
NUMBER '1' (1, 0) (1, 1)
OP '+' (1, 2) (1, 3)
NUMBER '1' (1, 4) (1, 5)
>>> dump_tokens("if False:\\n"
... " # NL\\n"
... " True = False # NEWLINE\\n")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'if' (1, 0) (1, 2)
NAME 'False' (1, 3) (1, 8)
OP ':' (1, 8) (1, 9)
NEWLINE '\\n' (1, 9) (1, 10)
COMMENT '# NL' (2, 4) (2, 8)
NL '\\n' (2, 8) (2, 9)
INDENT ' ' (3, 0) (3, 4)
NAME 'True' (3, 4) (3, 8)
OP '=' (3, 9) (3, 10)
NAME 'False' (3, 11) (3, 16)
COMMENT '# NEWLINE' (3, 17) (3, 26)
NEWLINE '\\n' (3, 26) (3, 27)
DEDENT '' (4, 0) (4, 0)
>>> indent_error_file = \"""
... def k(x):
... x += 2
... x += 5
... \"""
>>> readline = BytesIO(indent_error_file.encode('utf-8')).readline
>>> for tok in tokenize(readline): pass
Traceback (most recent call last):
...
IndentationError: unindent does not match any outer indentation level
There are some standard formatting practices that are easy to get right.
>>> roundtrip("if x == 1:\\n"
... " print(x)\\n")
True
>>> roundtrip("# This is a comment\\n# This also")
True
Some people use different formatting conventions, which makes
untokenize a little trickier. Note that this test involves trailing
whitespace after the colon. Note that we use hex escapes to make the
two trailing blanks apparent in the expected output.
>>> roundtrip("if x == 1 : \\n"
... " print(x)\\n")
True
>>> f = support.findfile("tokenize_tests.txt")
>>> roundtrip(open(f, 'rb'))
True
>>> roundtrip("if x == 1:\\n"
... " # A comment by itself.\\n"
... " print(x) # Comment here, too.\\n"
... " # Another comment.\\n"
... "after_if = True\\n")
True
>>> roundtrip("if (x # The comments need to go in the right place\\n"
... " == 1):\\n"
... " print('x==1')\\n")
True
>>> roundtrip("class Test: # A comment here\\n"
... " # A comment with weird indent\\n"
... " after_com = 5\\n"
... " def x(m): return m*5 # a one liner\\n"
... " def y(m): # A whitespace after the colon\\n"
... " return y*4 # 3-space indent\\n")
True
Some error-handling code
>>> roundtrip("try: import somemodule\\n"
... "except ImportError: # comment\\n"
... " print('Can not import' # comment2\\n)"
... "else: print('Loaded')\\n")
True
Balancing continuation
>>> roundtrip("a = (3,4, \\n"
... "5,6)\\n"
... "y = [3, 4,\\n"
... "5]\\n"
... "z = {'a': 5,\\n"
... "'b':15, 'c':True}\\n"
... "x = len(y) + 5 - a[\\n"
... "3] - a[2]\\n"
... "+ len(z) - z[\\n"
... "'b']\\n")
True
Ordinary integers and binary operators
>>> dump_tokens("0xff <= 255")
ENCODING 'utf-8' (0, 0) (0, 0)
NUMBER '0xff' (1, 0) (1, 4)
OP '<=' (1, 5) (1, 7)
NUMBER '255' (1, 8) (1, 11)
>>> dump_tokens("0b10 <= 255")
ENCODING 'utf-8' (0, 0) (0, 0)
NUMBER '0b10' (1, 0) (1, 4)
OP '<=' (1, 5) (1, 7)
NUMBER '255' (1, 8) (1, 11)
>>> dump_tokens("0o123 <= 0O123")
ENCODING 'utf-8' (0, 0) (0, 0)
NUMBER '0o123' (1, 0) (1, 5)
OP '<=' (1, 6) (1, 8)
NUMBER '0O123' (1, 9) (1, 14)
>>> dump_tokens("1234567 > ~0x15")
ENCODING 'utf-8' (0, 0) (0, 0)
NUMBER '1234567' (1, 0) (1, 7)
OP '>' (1, 8) (1, 9)
OP '~' (1, 10) (1, 11)
NUMBER '0x15' (1, 11) (1, 15)
>>> dump_tokens("2134568 != 1231515")
ENCODING 'utf-8' (0, 0) (0, 0)
NUMBER '2134568' (1, 0) (1, 7)
OP '!=' (1, 8) (1, 10)
NUMBER '1231515' (1, 11) (1, 18)
>>> dump_tokens("(-124561-1) & 200000000")
ENCODING 'utf-8' (0, 0) (0, 0)
OP '(' (1, 0) (1, 1)
OP '-' (1, 1) (1, 2)
NUMBER '124561' (1, 2) (1, 8)
OP '-' (1, 8) (1, 9)
NUMBER '1' (1, 9) (1, 10)
OP ')' (1, 10) (1, 11)
OP '&' (1, 12) (1, 13)
NUMBER '200000000' (1, 14) (1, 23)
>>> dump_tokens("0xdeadbeef != -1")
ENCODING 'utf-8' (0, 0) (0, 0)
NUMBER '0xdeadbeef' (1, 0) (1, 10)
OP '!=' (1, 11) (1, 13)
OP '-' (1, 14) (1, 15)
NUMBER '1' (1, 15) (1, 16)
>>> dump_tokens("0xdeadc0de & 12345")
ENCODING 'utf-8' (0, 0) (0, 0)
NUMBER '0xdeadc0de' (1, 0) (1, 10)
OP '&' (1, 11) (1, 12)
NUMBER '12345' (1, 13) (1, 18)
>>> dump_tokens("0xFF & 0x15 | 1234")
ENCODING 'utf-8' (0, 0) (0, 0)
NUMBER '0xFF' (1, 0) (1, 4)
OP '&' (1, 5) (1, 6)
NUMBER '0x15' (1, 7) (1, 11)
OP '|' (1, 12) (1, 13)
NUMBER '1234' (1, 14) (1, 18)
Long integers
>>> dump_tokens("x = 0")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '0' (1, 4) (1, 5)
>>> dump_tokens("x = 0xfffffffffff")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '0xffffffffff (1, 4) (1, 17)
>>> dump_tokens("x = 123141242151251616110")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '123141242151 (1, 4) (1, 25)
>>> dump_tokens("x = -15921590215012591")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
OP '-' (1, 4) (1, 5)
NUMBER '159215902150 (1, 5) (1, 22)
Floating point numbers
>>> dump_tokens("x = 3.14159")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '3.14159' (1, 4) (1, 11)
>>> dump_tokens("x = 314159.")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '314159.' (1, 4) (1, 11)
>>> dump_tokens("x = .314159")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '.314159' (1, 4) (1, 11)
>>> dump_tokens("x = 3e14159")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '3e14159' (1, 4) (1, 11)
>>> dump_tokens("x = 3E123")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '3E123' (1, 4) (1, 9)
>>> dump_tokens("x+y = 3e-1230")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '+' (1, 1) (1, 2)
NAME 'y' (1, 2) (1, 3)
OP '=' (1, 4) (1, 5)
NUMBER '3e-1230' (1, 6) (1, 13)
>>> dump_tokens("x = 3.14e159")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '3.14e159' (1, 4) (1, 12)
String literals
>>> dump_tokens("x = ''; y = \\\"\\\"")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
STRING "''" (1, 4) (1, 6)
OP ';' (1, 6) (1, 7)
NAME 'y' (1, 8) (1, 9)
OP '=' (1, 10) (1, 11)
STRING '""' (1, 12) (1, 14)
>>> dump_tokens("x = '\\\"'; y = \\\"'\\\"")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
STRING '\\'"\\'' (1, 4) (1, 7)
OP ';' (1, 7) (1, 8)
NAME 'y' (1, 9) (1, 10)
OP '=' (1, 11) (1, 12)
STRING '"\\'"' (1, 13) (1, 16)
>>> dump_tokens("x = \\\"doesn't \\\"shrink\\\", does it\\\"")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
STRING '"doesn\\'t "' (1, 4) (1, 14)
NAME 'shrink' (1, 14) (1, 20)
STRING '", does it"' (1, 20) (1, 31)
>>> dump_tokens("x = 'abc' + 'ABC'")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
STRING "'abc'" (1, 4) (1, 9)
OP '+' (1, 10) (1, 11)
STRING "'ABC'" (1, 12) (1, 17)
>>> dump_tokens('y = "ABC" + "ABC"')
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'y' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
STRING '"ABC"' (1, 4) (1, 9)
OP '+' (1, 10) (1, 11)
STRING '"ABC"' (1, 12) (1, 17)
>>> dump_tokens("x = r'abc' + r'ABC' + R'ABC' + R'ABC'")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
STRING "r'abc'" (1, 4) (1, 10)
OP '+' (1, 11) (1, 12)
STRING "r'ABC'" (1, 13) (1, 19)
OP '+' (1, 20) (1, 21)
STRING "R'ABC'" (1, 22) (1, 28)
OP '+' (1, 29) (1, 30)
STRING "R'ABC'" (1, 31) (1, 37)
>>> dump_tokens('y = r"abc" + r"ABC" + R"ABC" + R"ABC"')
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'y' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
STRING 'r"abc"' (1, 4) (1, 10)
OP '+' (1, 11) (1, 12)
STRING 'r"ABC"' (1, 13) (1, 19)
OP '+' (1, 20) (1, 21)
STRING 'R"ABC"' (1, 22) (1, 28)
OP '+' (1, 29) (1, 30)
STRING 'R"ABC"' (1, 31) (1, 37)
>>> dump_tokens("u'abc' + U'abc'")
ENCODING 'utf-8' (0, 0) (0, 0)
STRING "u'abc'" (1, 0) (1, 6)
OP '+' (1, 7) (1, 8)
STRING "U'abc'" (1, 9) (1, 15)
>>> dump_tokens('u"abc" + U"abc"')
ENCODING 'utf-8' (0, 0) (0, 0)
STRING 'u"abc"' (1, 0) (1, 6)
OP '+' (1, 7) (1, 8)
STRING 'U"abc"' (1, 9) (1, 15)
>>> dump_tokens("b'abc' + B'abc'")
ENCODING 'utf-8' (0, 0) (0, 0)
STRING "b'abc'" (1, 0) (1, 6)
OP '+' (1, 7) (1, 8)
STRING "B'abc'" (1, 9) (1, 15)
>>> dump_tokens('b"abc" + B"abc"')
ENCODING 'utf-8' (0, 0) (0, 0)
STRING 'b"abc"' (1, 0) (1, 6)
OP '+' (1, 7) (1, 8)
STRING 'B"abc"' (1, 9) (1, 15)
>>> dump_tokens("br'abc' + bR'abc' + Br'abc' + BR'abc'")
ENCODING 'utf-8' (0, 0) (0, 0)
STRING "br'abc'" (1, 0) (1, 7)
OP '+' (1, 8) (1, 9)
STRING "bR'abc'" (1, 10) (1, 17)
OP '+' (1, 18) (1, 19)
STRING "Br'abc'" (1, 20) (1, 27)
OP '+' (1, 28) (1, 29)
STRING "BR'abc'" (1, 30) (1, 37)
>>> dump_tokens('br"abc" + bR"abc" + Br"abc" + BR"abc"')
ENCODING 'utf-8' (0, 0) (0, 0)
STRING 'br"abc"' (1, 0) (1, 7)
OP '+' (1, 8) (1, 9)
STRING 'bR"abc"' (1, 10) (1, 17)
OP '+' (1, 18) (1, 19)
STRING 'Br"abc"' (1, 20) (1, 27)
OP '+' (1, 28) (1, 29)
STRING 'BR"abc"' (1, 30) (1, 37)
>>> dump_tokens("rb'abc' + rB'abc' + Rb'abc' + RB'abc'")
ENCODING 'utf-8' (0, 0) (0, 0)
STRING "rb'abc'" (1, 0) (1, 7)
OP '+' (1, 8) (1, 9)
STRING "rB'abc'" (1, 10) (1, 17)
OP '+' (1, 18) (1, 19)
STRING "Rb'abc'" (1, 20) (1, 27)
OP '+' (1, 28) (1, 29)
STRING "RB'abc'" (1, 30) (1, 37)
>>> dump_tokens('rb"abc" + rB"abc" + Rb"abc" + RB"abc"')
ENCODING 'utf-8' (0, 0) (0, 0)
STRING 'rb"abc"' (1, 0) (1, 7)
OP '+' (1, 8) (1, 9)
STRING 'rB"abc"' (1, 10) (1, 17)
OP '+' (1, 18) (1, 19)
STRING 'Rb"abc"' (1, 20) (1, 27)
OP '+' (1, 28) (1, 29)
STRING 'RB"abc"' (1, 30) (1, 37)
Operators
>>> dump_tokens("def d22(a, b, c=2, d=2, *k): pass")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'def' (1, 0) (1, 3)
NAME 'd22' (1, 4) (1, 7)
OP '(' (1, 7) (1, 8)
NAME 'a' (1, 8) (1, 9)
OP ',' (1, 9) (1, 10)
NAME 'b' (1, 11) (1, 12)
OP ',' (1, 12) (1, 13)
NAME 'c' (1, 14) (1, 15)
OP '=' (1, 15) (1, 16)
NUMBER '2' (1, 16) (1, 17)
OP ',' (1, 17) (1, 18)
NAME 'd' (1, 19) (1, 20)
OP '=' (1, 20) (1, 21)
NUMBER '2' (1, 21) (1, 22)
OP ',' (1, 22) (1, 23)
OP '*' (1, 24) (1, 25)
NAME 'k' (1, 25) (1, 26)
OP ')' (1, 26) (1, 27)
OP ':' (1, 27) (1, 28)
NAME 'pass' (1, 29) (1, 33)
>>> dump_tokens("def d01v_(a=1, *k, **w): pass")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'def' (1, 0) (1, 3)
NAME 'd01v_' (1, 4) (1, 9)
OP '(' (1, 9) (1, 10)
NAME 'a' (1, 10) (1, 11)
OP '=' (1, 11) (1, 12)
NUMBER '1' (1, 12) (1, 13)
OP ',' (1, 13) (1, 14)
OP '*' (1, 15) (1, 16)
NAME 'k' (1, 16) (1, 17)
OP ',' (1, 17) (1, 18)
OP '**' (1, 19) (1, 21)
NAME 'w' (1, 21) (1, 22)
OP ')' (1, 22) (1, 23)
OP ':' (1, 23) (1, 24)
NAME 'pass' (1, 25) (1, 29)
Comparison
>>> dump_tokens("if 1 < 1 > 1 == 1 >= 5 <= 0x15 <= 0x12 != " +
... "1 and 5 in 1 not in 1 is 1 or 5 is not 1: pass")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'if' (1, 0) (1, 2)
NUMBER '1' (1, 3) (1, 4)
OP '<' (1, 5) (1, 6)
NUMBER '1' (1, 7) (1, 8)
OP '>' (1, 9) (1, 10)
NUMBER '1' (1, 11) (1, 12)
OP '==' (1, 13) (1, 15)
NUMBER '1' (1, 16) (1, 17)
OP '>=' (1, 18) (1, 20)
NUMBER '5' (1, 21) (1, 22)
OP '<=' (1, 23) (1, 25)
NUMBER '0x15' (1, 26) (1, 30)
OP '<=' (1, 31) (1, 33)
NUMBER '0x12' (1, 34) (1, 38)
OP '!=' (1, 39) (1, 41)
NUMBER '1' (1, 42) (1, 43)
NAME 'and' (1, 44) (1, 47)
NUMBER '5' (1, 48) (1, 49)
NAME 'in' (1, 50) (1, 52)
NUMBER '1' (1, 53) (1, 54)
NAME 'not' (1, 55) (1, 58)
NAME 'in' (1, 59) (1, 61)
NUMBER '1' (1, 62) (1, 63)
NAME 'is' (1, 64) (1, 66)
NUMBER '1' (1, 67) (1, 68)
NAME 'or' (1, 69) (1, 71)
NUMBER '5' (1, 72) (1, 73)
NAME 'is' (1, 74) (1, 76)
NAME 'not' (1, 77) (1, 80)
NUMBER '1' (1, 81) (1, 82)
OP ':' (1, 82) (1, 83)
NAME 'pass' (1, 84) (1, 88)
Shift
>>> dump_tokens("x = 1 << 1 >> 5")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '1' (1, 4) (1, 5)
OP '<<' (1, 6) (1, 8)
NUMBER '1' (1, 9) (1, 10)
OP '>>' (1, 11) (1, 13)
NUMBER '5' (1, 14) (1, 15)
Additive
>>> dump_tokens("x = 1 - y + 15 - 1 + 0x124 + z + a[5]")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '1' (1, 4) (1, 5)
OP '-' (1, 6) (1, 7)
NAME 'y' (1, 8) (1, 9)
OP '+' (1, 10) (1, 11)
NUMBER '15' (1, 12) (1, 14)
OP '-' (1, 15) (1, 16)
NUMBER '1' (1, 17) (1, 18)
OP '+' (1, 19) (1, 20)
NUMBER '0x124' (1, 21) (1, 26)
OP '+' (1, 27) (1, 28)
NAME 'z' (1, 29) (1, 30)
OP '+' (1, 31) (1, 32)
NAME 'a' (1, 33) (1, 34)
OP '[' (1, 34) (1, 35)
NUMBER '5' (1, 35) (1, 36)
OP ']' (1, 36) (1, 37)
Multiplicative
>>> dump_tokens("x = 1//1*1/5*12%0x12@42")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'x' (1, 0) (1, 1)
OP '=' (1, 2) (1, 3)
NUMBER '1' (1, 4) (1, 5)
OP '//' (1, 5) (1, 7)
NUMBER '1' (1, 7) (1, 8)
OP '*' (1, 8) (1, 9)
NUMBER '1' (1, 9) (1, 10)
OP '/' (1, 10) (1, 11)
NUMBER '5' (1, 11) (1, 12)
OP '*' (1, 12) (1, 13)
NUMBER '12' (1, 13) (1, 15)
OP '%' (1, 15) (1, 16)
NUMBER '0x12' (1, 16) (1, 20)
OP '@' (1, 20) (1, 21)
NUMBER '42' (1, 21) (1, 23)
Unary
>>> dump_tokens("~1 ^ 1 & 1 |1 ^ -1")
ENCODING 'utf-8' (0, 0) (0, 0)
OP '~' (1, 0) (1, 1)
NUMBER '1' (1, 1) (1, 2)
OP '^' (1, 3) (1, 4)
NUMBER '1' (1, 5) (1, 6)
OP '&' (1, 7) (1, 8)
NUMBER '1' (1, 9) (1, 10)
OP '|' (1, 11) (1, 12)
NUMBER '1' (1, 12) (1, 13)
OP '^' (1, 14) (1, 15)
OP '-' (1, 16) (1, 17)
NUMBER '1' (1, 17) (1, 18)
>>> dump_tokens("-1*1/1+1*1//1 - ---1**1")
ENCODING 'utf-8' (0, 0) (0, 0)
OP '-' (1, 0) (1, 1)
NUMBER '1' (1, 1) (1, 2)
OP '*' (1, 2) (1, 3)
NUMBER '1' (1, 3) (1, 4)
OP '/' (1, 4) (1, 5)
NUMBER '1' (1, 5) (1, 6)
OP '+' (1, 6) (1, 7)
NUMBER '1' (1, 7) (1, 8)
OP '*' (1, 8) (1, 9)
NUMBER '1' (1, 9) (1, 10)
OP '//' (1, 10) (1, 12)
NUMBER '1' (1, 12) (1, 13)
OP '-' (1, 14) (1, 15)
OP '-' (1, 16) (1, 17)
OP '-' (1, 17) (1, 18)
OP '-' (1, 18) (1, 19)
NUMBER '1' (1, 19) (1, 20)
OP '**' (1, 20) (1, 22)
NUMBER '1' (1, 22) (1, 23)
Selector
>>> dump_tokens("import sys, time\\nx = sys.modules['time'].time()")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'import' (1, 0) (1, 6)
NAME 'sys' (1, 7) (1, 10)
OP ',' (1, 10) (1, 11)
NAME 'time' (1, 12) (1, 16)
NEWLINE '\\n' (1, 16) (1, 17)
NAME 'x' (2, 0) (2, 1)
OP '=' (2, 2) (2, 3)
NAME 'sys' (2, 4) (2, 7)
OP '.' (2, 7) (2, 8)
NAME 'modules' (2, 8) (2, 15)
OP '[' (2, 15) (2, 16)
STRING "'time'" (2, 16) (2, 22)
OP ']' (2, 22) (2, 23)
OP '.' (2, 23) (2, 24)
NAME 'time' (2, 24) (2, 28)
OP '(' (2, 28) (2, 29)
OP ')' (2, 29) (2, 30)
Methods
>>> dump_tokens("@staticmethod\\ndef foo(x,y): pass")
ENCODING 'utf-8' (0, 0) (0, 0)
OP '@' (1, 0) (1, 1)
NAME 'staticmethod (1, 1) (1, 13)
NEWLINE '\\n' (1, 13) (1, 14)
NAME 'def' (2, 0) (2, 3)
NAME 'foo' (2, 4) (2, 7)
OP '(' (2, 7) (2, 8)
NAME 'x' (2, 8) (2, 9)
OP ',' (2, 9) (2, 10)
NAME 'y' (2, 10) (2, 11)
OP ')' (2, 11) (2, 12)
OP ':' (2, 12) (2, 13)
NAME 'pass' (2, 14) (2, 18)
Backslash means line continuation, except for comments
>>> roundtrip("x=1+\\\\n"
... "1\\n"
... "# This is a comment\\\\n"
... "# This also\\n")
True
>>> roundtrip("# Comment \\\\nx = 0")
True
Two string literals on the same line
>>> roundtrip("'' ''")
True
Test roundtrip on random python modules.
pass the '-ucpu' option to process the full directory.
>>> import random
>>> tempdir = os.path.dirname(f) or os.curdir
>>> testfiles = glob.glob(os.path.join(tempdir, "test*.py"))
Tokenize is broken on test_pep3131.py because regular expressions are
broken on the obscure unicode identifiers in it. *sigh*
With roundtrip extended to test the 5-tuple mode of untokenize,
7 more testfiles fail. Remove them also until the failure is diagnosed.
>>> testfiles.remove(os.path.join(tempdir, "test_pep3131.py"))
>>> for f in ('buffer', 'builtin', 'fileio', 'inspect', 'os', 'platform', 'sys'):
... testfiles.remove(os.path.join(tempdir, "test_%s.py") % f)
...
>>> if not support.is_resource_enabled("cpu"):
... testfiles = random.sample(testfiles, 10)
...
>>> for testfile in testfiles:
... if not roundtrip(open(testfile, 'rb')):
... print("Roundtrip failed for file %s" % testfile)
... break
... else: True
True
Evil tabs
>>> dump_tokens("def f():\\n\\tif x\\n \\tpass")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'def' (1, 0) (1, 3)
NAME 'f' (1, 4) (1, 5)
OP '(' (1, 5) (1, 6)
OP ')' (1, 6) (1, 7)
OP ':' (1, 7) (1, 8)
NEWLINE '\\n' (1, 8) (1, 9)
INDENT '\\t' (2, 0) (2, 1)
NAME 'if' (2, 1) (2, 3)
NAME 'x' (2, 4) (2, 5)
NEWLINE '\\n' (2, 5) (2, 6)
INDENT ' \\t' (3, 0) (3, 9)
NAME 'pass' (3, 9) (3, 13)
DEDENT '' (4, 0) (4, 0)
DEDENT '' (4, 0) (4, 0)
Non-ascii identifiers
>>> dump_tokens("Örter = 'places'\\ngrün = 'green'")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'Örter' (1, 0) (1, 5)
OP '=' (1, 6) (1, 7)
STRING "'places'" (1, 8) (1, 16)
NEWLINE '\\n' (1, 16) (1, 17)
NAME 'grün' (2, 0) (2, 4)
OP '=' (2, 5) (2, 6)
STRING "'green'" (2, 7) (2, 14)
Legacy unicode literals:
>>> dump_tokens("Örter = u'places'\\ngrün = U'green'")
ENCODING 'utf-8' (0, 0) (0, 0)
NAME 'Örter' (1, 0) (1, 5)
OP '=' (1, 6) (1, 7)
STRING "u'places'" (1, 8) (1, 17)
NEWLINE '\\n' (1, 17) (1, 18)
NAME 'grün' (2, 0) (2, 4)
OP '=' (2, 5) (2, 6)
STRING "U'green'" (2, 7) (2, 15)
"""
from test import support
from tokenize import (tokenize, _tokenize, untokenize, NUMBER, NAME, OP,
STRING, ENDMARKER, ENCODING, tok_name, detect_encoding,
open as tokenize_open, Untokenizer)
from io import BytesIO
from unittest import TestCase
import os, sys, glob
import token
def dump_tokens(s):
"""Print out the tokens in s in a table format.
The ENDMARKER is omitted.
"""
f = BytesIO(s.encode('utf-8'))
for type, token, start, end, line in tokenize(f.readline):
if type == ENDMARKER:
break
type = tok_name[type]
print("%(type)-10.10s %(token)-13.13r %(start)s %(end)s" % locals())
def roundtrip(f):
"""
Test roundtrip for `untokenize`. `f` is an open file or a string.
The source code in f is tokenized to both 5- and 2-tuples.
Both sequences are converted back to source code via
tokenize.untokenize(), and the latter tokenized again to 2-tuples.
The test fails if the 3 pair tokenizations do not match.
When untokenize bugs are fixed, untokenize with 5-tuples should
reproduce code that does not contain a backslash continuation
following spaces. A proper test should test this.
This function would be more useful for correcting bugs if it reported
the first point of failure, like assertEqual, rather than just
returning False -- or if it were only used in unittests and not
doctest and actually used assertEqual.
"""
# Get source code and original tokenizations
if isinstance(f, str):
code = f.encode('utf-8')
else:
code = f.read()
f.close()
readline = iter(code.splitlines(keepends=True)).__next__
tokens5 = list(tokenize(readline))
tokens2 = [tok[:2] for tok in tokens5]
# Reproduce tokens2 from pairs
bytes_from2 = untokenize(tokens2)
readline2 = iter(bytes_from2.splitlines(keepends=True)).__next__
tokens2_from2 = [tok[:2] for tok in tokenize(readline2)]
# Reproduce tokens2 from 5-tuples
bytes_from5 = untokenize(tokens5)
readline5 = iter(bytes_from5.splitlines(keepends=True)).__next__
tokens2_from5 = [tok[:2] for tok in tokenize(readline5)]
# Compare 3 versions
return tokens2 == tokens2_from2 == tokens2_from5
# This is an example from the docs, set up as a doctest.
def decistmt(s):
"""Substitute Decimals for floats in a string of statements.
>>> from decimal import Decimal
>>> s = 'print(+21.3e-5*-.1234/81.7)'
>>> decistmt(s)
"print (+Decimal ('21.3e-5')*-Decimal ('.1234')/Decimal ('81.7'))"
The format of the exponent is inherited from the platform C library.
Known cases are "e-007" (Windows) and "e-07" (not Windows). Since
we're only showing 11 digits, and the 12th isn't close to 5, the
rest of the output should be platform-independent.
>>> exec(s) #doctest: +ELLIPSIS
-3.2171603427...e-0...7
Output from calculations with Decimal should be identical across all
platforms.
>>> exec(decistmt(s))
-3.217160342717258261933904529E-7
"""
result = []
g = tokenize(BytesIO(s.encode('utf-8')).readline) # tokenize the string
for toknum, tokval, _, _, _ in g:
if toknum == NUMBER and '.' in tokval: # replace NUMBER tokens
result.extend([
(NAME, 'Decimal'),
(OP, '('),
(STRING, repr(tokval)),
(OP, ')')
])
else:
result.append((toknum, tokval))
return untokenize(result).decode('utf-8')
class TestTokenizerAdheresToPep0263(TestCase):
"""
Test that tokenizer adheres to the coding behaviour stipulated in PEP 0263.
"""
def _testFile(self, filename):
path = os.path.join(os.path.dirname(__file__), filename)
return roundtrip(open(path, 'rb'))
def test_utf8_coding_cookie_and_no_utf8_bom(self):
f = 'tokenize_tests-utf8-coding-cookie-and-no-utf8-bom-sig.txt'
self.assertTrue(self._testFile(f))
def test_latin1_coding_cookie_and_utf8_bom(self):
"""
As per PEP 0263, if a file starts with a utf-8 BOM signature, the only
allowed encoding for the comment is 'utf-8'. The text file used in
this test starts with a BOM signature, but specifies latin1 as the
coding, so verify that a SyntaxError is raised, which matches the
behaviour of the interpreter when it encounters a similar condition.
"""
f = 'tokenize_tests-latin1-coding-cookie-and-utf8-bom-sig.txt'
self.assertRaises(SyntaxError, self._testFile, f)
def test_no_coding_cookie_and_utf8_bom(self):
f = 'tokenize_tests-no-coding-cookie-and-utf8-bom-sig-only.txt'
self.assertTrue(self._testFile(f))
def test_utf8_coding_cookie_and_utf8_bom(self):
f = 'tokenize_tests-utf8-coding-cookie-and-utf8-bom-sig.txt'
self.assertTrue(self._testFile(f))
def test_bad_coding_cookie(self):
self.assertRaises(SyntaxError, self._testFile, 'bad_coding.py')
self.assertRaises(SyntaxError, self._testFile, 'bad_coding2.py')
class Test_Tokenize(TestCase):
def test__tokenize_decodes_with_specified_encoding(self):
literal = '"ЉЊЈЁЂ"'
line = literal.encode('utf-8')
first = False
def readline():
nonlocal first
if not first:
first = True
return line
else:
return b''
# skip the initial encoding token and the end token
tokens = list(_tokenize(readline, encoding='utf-8'))[1:-1]
expected_tokens = [(3, '"ЉЊЈЁЂ"', (1, 0), (1, 7), '"ЉЊЈЁЂ"')]
self.assertEqual(tokens, expected_tokens,
"bytes not decoded with encoding")
def test__tokenize_does_not_decode_with_encoding_none(self):
literal = '"ЉЊЈЁЂ"'
first = False
def readline():
nonlocal first
if not first:
first = True
return literal
else:
return b''
# skip the end token
tokens = list(_tokenize(readline, encoding=None))[:-1]
expected_tokens = [(3, '"ЉЊЈЁЂ"', (1, 0), (1, 7), '"ЉЊЈЁЂ"')]
self.assertEqual(tokens, expected_tokens,
"string not tokenized when encoding is None")
class TestDetectEncoding(TestCase):
def get_readline(self, lines):
index = 0
def readline():
nonlocal index
if index == len(lines):
raise StopIteration
line = lines[index]
index += 1
return line
return readline
def test_no_bom_no_encoding_cookie(self):
lines = (
b'# something\n',
b'print(something)\n',
b'do_something(else)\n'
)
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
self.assertEqual(encoding, 'utf-8')
self.assertEqual(consumed_lines, list(lines[:2]))
def test_bom_no_cookie(self):
lines = (
b'\xef\xbb\xbf# something\n',
b'print(something)\n',
b'do_something(else)\n'
)
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
self.assertEqual(encoding, 'utf-8-sig')
self.assertEqual(consumed_lines,
[b'# something\n', b'print(something)\n'])
def test_cookie_first_line_no_bom(self):
lines = (
b'# -*- coding: latin-1 -*-\n',
b'print(something)\n',
b'do_something(else)\n'
)
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
self.assertEqual(encoding, 'iso-8859-1')
self.assertEqual(consumed_lines, [b'# -*- coding: latin-1 -*-\n'])
def test_matched_bom_and_cookie_first_line(self):
lines = (
b'\xef\xbb\xbf# coding=utf-8\n',
b'print(something)\n',
b'do_something(else)\n'
)
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
self.assertEqual(encoding, 'utf-8-sig')
self.assertEqual(consumed_lines, [b'# coding=utf-8\n'])
def test_mismatched_bom_and_cookie_first_line_raises_syntaxerror(self):
lines = (
b'\xef\xbb\xbf# vim: set fileencoding=ascii :\n',
b'print(something)\n',
b'do_something(else)\n'
)
readline = self.get_readline(lines)
self.assertRaises(SyntaxError, detect_encoding, readline)
def test_cookie_second_line_no_bom(self):
lines = (
b'#! something\n',
b'# vim: set fileencoding=ascii :\n',
b'print(something)\n',
b'do_something(else)\n'
)
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
self.assertEqual(encoding, 'ascii')
expected = [b'#! something\n', b'# vim: set fileencoding=ascii :\n']
self.assertEqual(consumed_lines, expected)
def test_matched_bom_and_cookie_second_line(self):
lines = (
b'\xef\xbb\xbf#! something\n',
b'f# coding=utf-8\n',
b'print(something)\n',
b'do_something(else)\n'
)
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
self.assertEqual(encoding, 'utf-8-sig')
self.assertEqual(consumed_lines,
[b'#! something\n', b'f# coding=utf-8\n'])
def test_mismatched_bom_and_cookie_second_line_raises_syntaxerror(self):
lines = (
b'\xef\xbb\xbf#! something\n',
b'# vim: set fileencoding=ascii :\n',
b'print(something)\n',
b'do_something(else)\n'
)
readline = self.get_readline(lines)
self.assertRaises(SyntaxError, detect_encoding, readline)
def test_cookie_second_line_noncommented_first_line(self):
lines = (
b"print('\xc2\xa3')\n",
b'# vim: set fileencoding=iso8859-15 :\n',
b"print('\xe2\x82\xac')\n"
)
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
self.assertEqual(encoding, 'utf-8')
expected = [b"print('\xc2\xa3')\n"]
self.assertEqual(consumed_lines, expected)
def test_cookie_second_line_commented_first_line(self):
lines = (
b"#print('\xc2\xa3')\n",
b'# vim: set fileencoding=iso8859-15 :\n',
b"print('\xe2\x82\xac')\n"
)
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
self.assertEqual(encoding, 'iso8859-15')
expected = [b"#print('\xc2\xa3')\n", b'# vim: set fileencoding=iso8859-15 :\n']
self.assertEqual(consumed_lines, expected)
def test_cookie_second_line_empty_first_line(self):
lines = (
b'\n',
b'# vim: set fileencoding=iso8859-15 :\n',
b"print('\xe2\x82\xac')\n"
)
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
self.assertEqual(encoding, 'iso8859-15')
expected = [b'\n', b'# vim: set fileencoding=iso8859-15 :\n']
self.assertEqual(consumed_lines, expected)
def test_latin1_normalization(self):
# See get_normal_name() in tokenizer.c.
encodings = ("latin-1", "iso-8859-1", "iso-latin-1", "latin-1-unix",
"iso-8859-1-unix", "iso-latin-1-mac")
for encoding in encodings:
for rep in ("-", "_"):
enc = encoding.replace("-", rep)
lines = (b"#!/usr/bin/python\n",
b"# coding: " + enc.encode("ascii") + b"\n",
b"print(things)\n",
b"do_something += 4\n")
rl = self.get_readline(lines)
found, consumed_lines = detect_encoding(rl)
self.assertEqual(found, "iso-8859-1")
def test_syntaxerror_latin1(self):
# Issue 14629: need to raise SyntaxError if the first
# line(s) have non-UTF-8 characters
lines = (
b'print("\xdf")', # Latin-1: LATIN SMALL LETTER SHARP S
)
readline = self.get_readline(lines)
self.assertRaises(SyntaxError, detect_encoding, readline)
def test_utf8_normalization(self):
# See get_normal_name() in tokenizer.c.
encodings = ("utf-8", "utf-8-mac", "utf-8-unix")
for encoding in encodings:
for rep in ("-", "_"):
enc = encoding.replace("-", rep)
lines = (b"#!/usr/bin/python\n",
b"# coding: " + enc.encode("ascii") + b"\n",
b"1 + 3\n")
rl = self.get_readline(lines)
found, consumed_lines = detect_encoding(rl)
self.assertEqual(found, "utf-8")
def test_short_files(self):
readline = self.get_readline((b'print(something)\n',))
encoding, consumed_lines = detect_encoding(readline)
self.assertEqual(encoding, 'utf-8')
self.assertEqual(consumed_lines, [b'print(something)\n'])
encoding, consumed_lines = detect_encoding(self.get_readline(()))
self.assertEqual(encoding, 'utf-8')
self.assertEqual(consumed_lines, [])
readline = self.get_readline((b'\xef\xbb\xbfprint(something)\n',))
encoding, consumed_lines = detect_encoding(readline)
self.assertEqual(encoding, 'utf-8-sig')
self.assertEqual(consumed_lines, [b'print(something)\n'])
readline = self.get_readline((b'\xef\xbb\xbf',))
encoding, consumed_lines = detect_encoding(readline)
self.assertEqual(encoding, 'utf-8-sig')
self.assertEqual(consumed_lines, [])
readline = self.get_readline((b'# coding: bad\n',))
self.assertRaises(SyntaxError, detect_encoding, readline)
def test_false_encoding(self):
# Issue 18873: "Encoding" detected in non-comment lines
readline = self.get_readline((b'print("#coding=fake")',))
encoding, consumed_lines = detect_encoding(readline)
self.assertEqual(encoding, 'utf-8')
self.assertEqual(consumed_lines, [b'print("#coding=fake")'])
def test_open(self):
filename = support.TESTFN + '.py'
self.addCleanup(support.unlink, filename)
# test coding cookie
for encoding in ('iso-8859-15', 'utf-8'):
with open(filename, 'w', encoding=encoding) as fp:
print("# coding: %s" % encoding, file=fp)
print("print('euro:\u20ac')", file=fp)
with tokenize_open(filename) as fp:
self.assertEqual(fp.encoding, encoding)
self.assertEqual(fp.mode, 'r')
# test BOM (no coding cookie)
with open(filename, 'w', encoding='utf-8-sig') as fp:
print("print('euro:\u20ac')", file=fp)
with tokenize_open(filename) as fp:
self.assertEqual(fp.encoding, 'utf-8-sig')
self.assertEqual(fp.mode, 'r')
def test_filename_in_exception(self):
# When possible, include the file name in the exception.
path = 'some_file_path'
lines = (
b'print("\xdf")', # Latin-1: LATIN SMALL LETTER SHARP S
)
class Bunk:
def __init__(self, lines, path):
self.name = path
self._lines = lines
self._index = 0
def readline(self):
if self._index == len(lines):
raise StopIteration
line = lines[self._index]
self._index += 1
return line
with self.assertRaises(SyntaxError):
ins = Bunk(lines, path)
# Make sure lacking a name isn't an issue.
del ins.name
detect_encoding(ins.readline)
with self.assertRaisesRegex(SyntaxError, '.*{}'.format(path)):
ins = Bunk(lines, path)
detect_encoding(ins.readline)
class TestTokenize(TestCase):
def test_tokenize(self):
import tokenize as tokenize_module
encoding = object()
encoding_used = None
def mock_detect_encoding(readline):
return encoding, [b'first', b'second']
def mock__tokenize(readline, encoding):
nonlocal encoding_used
encoding_used = encoding
out = []
while True:
next_line = readline()
if next_line:
out.append(next_line)
continue
return out
counter = 0
def mock_readline():
nonlocal counter
counter += 1
if counter == 5:
return b''
return str(counter).encode()
orig_detect_encoding = tokenize_module.detect_encoding
orig__tokenize = tokenize_module._tokenize
tokenize_module.detect_encoding = mock_detect_encoding
tokenize_module._tokenize = mock__tokenize
try:
results = tokenize(mock_readline)
self.assertEqual(list(results),
[b'first', b'second', b'1', b'2', b'3', b'4'])
finally:
tokenize_module.detect_encoding = orig_detect_encoding
tokenize_module._tokenize = orig__tokenize
self.assertTrue(encoding_used, encoding)
def assertExactTypeEqual(self, opstr, *optypes):
tokens = list(tokenize(BytesIO(opstr.encode('utf-8')).readline))
num_optypes = len(optypes)
self.assertEqual(len(tokens), 2 + num_optypes)
self.assertEqual(token.tok_name[tokens[0].exact_type],
token.tok_name[ENCODING])
for i in range(num_optypes):
self.assertEqual(token.tok_name[tokens[i + 1].exact_type],
token.tok_name[optypes[i]])
self.assertEqual(token.tok_name[tokens[1 + num_optypes].exact_type],
token.tok_name[token.ENDMARKER])
def test_exact_type(self):
self.assertExactTypeEqual('()', token.LPAR, token.RPAR)
self.assertExactTypeEqual('[]', token.LSQB, token.RSQB)
self.assertExactTypeEqual(':', token.COLON)
self.assertExactTypeEqual(',', token.COMMA)
self.assertExactTypeEqual(';', token.SEMI)
self.assertExactTypeEqual('+', token.PLUS)
self.assertExactTypeEqual('-', token.MINUS)
self.assertExactTypeEqual('*', token.STAR)
self.assertExactTypeEqual('/', token.SLASH)
self.assertExactTypeEqual('|', token.VBAR)
self.assertExactTypeEqual('&', token.AMPER)
self.assertExactTypeEqual('<', token.LESS)
self.assertExactTypeEqual('>', token.GREATER)
self.assertExactTypeEqual('=', token.EQUAL)
self.assertExactTypeEqual('.', token.DOT)
self.assertExactTypeEqual('%', token.PERCENT)
self.assertExactTypeEqual('{}', token.LBRACE, token.RBRACE)
self.assertExactTypeEqual('==', token.EQEQUAL)
self.assertExactTypeEqual('!=', token.NOTEQUAL)
self.assertExactTypeEqual('<=', token.LESSEQUAL)
self.assertExactTypeEqual('>=', token.GREATEREQUAL)
self.assertExactTypeEqual('~', token.TILDE)
self.assertExactTypeEqual('^', token.CIRCUMFLEX)
self.assertExactTypeEqual('<<', token.LEFTSHIFT)
self.assertExactTypeEqual('>>', token.RIGHTSHIFT)
self.assertExactTypeEqual('**', token.DOUBLESTAR)
self.assertExactTypeEqual('+=', token.PLUSEQUAL)
self.assertExactTypeEqual('-=', token.MINEQUAL)
self.assertExactTypeEqual('*=', token.STAREQUAL)
self.assertExactTypeEqual('/=', token.SLASHEQUAL)
self.assertExactTypeEqual('%=', token.PERCENTEQUAL)
self.assertExactTypeEqual('&=', token.AMPEREQUAL)
self.assertExactTypeEqual('|=', token.VBAREQUAL)
self.assertExactTypeEqual('^=', token.CIRCUMFLEXEQUAL)
self.assertExactTypeEqual('^=', token.CIRCUMFLEXEQUAL)
self.assertExactTypeEqual('<<=', token.LEFTSHIFTEQUAL)
self.assertExactTypeEqual('>>=', token.RIGHTSHIFTEQUAL)
self.assertExactTypeEqual('**=', token.DOUBLESTAREQUAL)
self.assertExactTypeEqual('//', token.DOUBLESLASH)
self.assertExactTypeEqual('//=', token.DOUBLESLASHEQUAL)
self.assertExactTypeEqual('@', token.AT)
self.assertExactTypeEqual('@=', token.ATEQUAL)
self.assertExactTypeEqual('a**2+b**2==c**2',
NAME, token.DOUBLESTAR, NUMBER,
token.PLUS,
NAME, token.DOUBLESTAR, NUMBER,
token.EQEQUAL,
NAME, token.DOUBLESTAR, NUMBER)
self.assertExactTypeEqual('{1, 2, 3}',
token.LBRACE,
token.NUMBER, token.COMMA,
token.NUMBER, token.COMMA,
token.NUMBER,
token.RBRACE)
self.assertExactTypeEqual('^(x & 0x1)',
token.CIRCUMFLEX,
token.LPAR,
token.NAME, token.AMPER, token.NUMBER,
token.RPAR)
def test_pathological_trailing_whitespace(self):
# See http://bugs.python.org/issue16152
self.assertExactTypeEqual('@ ', token.AT)
class UntokenizeTest(TestCase):
def test_bad_input_order(self):
# raise if previous row
u = Untokenizer()
u.prev_row = 2
u.prev_col = 2
with self.assertRaises(ValueError) as cm:
u.add_whitespace((1,3))
self.assertEqual(cm.exception.args[0],
'start (1,3) precedes previous end (2,2)')
# raise if previous column in row
self.assertRaises(ValueError, u.add_whitespace, (2,1))
def test_backslash_continuation(self):
# The problem is that <whitespace>\<newline> leaves no token
u = Untokenizer()
u.prev_row = 1
u.prev_col = 1
u.tokens = []
u.add_whitespace((2, 0))
self.assertEqual(u.tokens, ['\\\n'])
u.prev_row = 2
u.add_whitespace((4, 4))
self.assertEqual(u.tokens, ['\\\n', '\\\n\\\n', ' '])
self.assertTrue(roundtrip('a\n b\n c\n \\\n c\n'))
def test_iter_compat(self):
u = Untokenizer()
token = (NAME, 'Hello')
tokens = [(ENCODING, 'utf-8'), token]
u.compat(token, iter([]))
self.assertEqual(u.tokens, ["Hello "])
u = Untokenizer()
self.assertEqual(u.untokenize(iter([token])), 'Hello ')
u = Untokenizer()
self.assertEqual(u.untokenize(iter(tokens)), 'Hello ')
self.assertEqual(u.encoding, 'utf-8')
self.assertEqual(untokenize(iter(tokens)), b'Hello ')
__test__ = {"doctests" : doctests, 'decistmt': decistmt}
def test_main():
from test import test_tokenize
support.run_doctest(test_tokenize, True)
support.run_unittest(TestTokenizerAdheresToPep0263)
support.run_unittest(Test_Tokenize)
support.run_unittest(TestDetectEncoding)
support.run_unittest(TestTokenize)
support.run_unittest(UntokenizeTest)
if __name__ == "__main__":
test_main()
