def test_unary_parens(self):
self.check_roundtrip("(-1)**7")
- self.check_roundtrip("(-1.)**8")
- self.check_roundtrip("(-1j)**6")
self.check_roundtrip("not True or False")
self.check_roundtrip("True or not False")
def test_huge_float(self):
self.check_roundtrip("1e1000")
self.check_roundtrip("-1e1000")
- self.check_roundtrip("1e1000j")
- self.check_roundtrip("-1e1000j")
-
- def test_min_int(self):
- self.check_roundtrip(str(-2**31))
- self.check_roundtrip(str(-2**63))
-
- def test_imag_literals(self):
- self.check_roundtrip("7j")
- self.check_roundtrip("-7j")
def test_lambda_parentheses(self):
self.check_roundtrip("(lambda: int)()")
# test directories, relative to the root of the distribution
test_directories = 'Lib', os.path.join('Lib', 'test')
- def Xtest_files(self):
+ def test_files(self):
# get names of files to test
dist_dir = os.path.join(os.path.dirname(__file__), os.pardir, os.pardir)
-#! /usr/bin/env python3.1
"Usage: unparse.py <path to source file>"
import sys
import math
self.write(t.id)
def _Num(self, t):
- # Python doesn't have negative numeric literals, but in Python
- # 2.x and early versions of Python 3.1, there's a compile-time
- # operation that turns "-<number>" into a single _Num, instead
- # of an unary minus applied to a _Num. Here we reverse that.
- infstr = "1e" + repr(sys.float_info.max_10_exp + 1)
-
- if isinstance(t.n, complex):
- # check that real part is as expected: 0 with appropriate sign
- print(t.n)
- print(str(t.n.real), str(math.copysign(0.0, t.n.imag)))
- assert str(t.n.real) == str(math.copysign(0.0, t.n.imag))
- negate = math.copysign(1.0, t.n.imag) < 0
- elif isinstance(t.n, float):
- negate = math.copysign(1.0, t.n) < 0
- elif isinstance(t.n, int):
- negate = t.n < 0
-
- if negate:
- self.write("(- ")
- val = -t.n
+ if isinstance(t.n, float) and math.isinf(t.n):
+ # Subsitute overflowing decimal literal for AST infinity
+ self.write("1e" + repr(sys.float_info.max_10_exp + 1))
else:
- val = t.n
-
- # Subsitute an overflowing decimal literal for an AST infinity
- self.write(repr(t.n).replace("inf", infstr))
-
- if negate:
- self.write(")")
-
+ self.write(repr(t.n))
def _List(self, t):
self.write("[")