40 lines
757 B
Python
40 lines
757 B
Python
"""Verify that warnings are issued for global statements following use"""
|
|
|
|
from test_support import check_syntax
|
|
|
|
import warnings
|
|
|
|
warnings.filterwarnings("error", category=SyntaxWarning, module=__name__)
|
|
|
|
def compile_and_catch_warning(text):
|
|
try:
|
|
compile(text, "<test code>", "exec")
|
|
except SyntaxWarning, msg:
|
|
print "got SyntaxWarning as expected"
|
|
else:
|
|
print "expected SyntaxWarning"
|
|
|
|
prog_text_1 = """
|
|
def wrong1():
|
|
a = 1
|
|
b = 2
|
|
global a
|
|
global b
|
|
"""
|
|
compile_and_catch_warning(prog_text_1)
|
|
|
|
prog_text_2 = """
|
|
def wrong2():
|
|
print x
|
|
global x
|
|
"""
|
|
compile_and_catch_warning(prog_text_2)
|
|
|
|
prog_text_3 = """
|
|
def wrong3():
|
|
print x
|
|
x = 2
|
|
global x
|
|
"""
|
|
compile_and_catch_warning(prog_text_3)
|