On 2016-06-02 15:04, Makoto Kuwata wrote:
Hi,
I have a trouble around __import__().
The following sample code works well on Python <= 3.3,
but it raises ImportError on Python >= 3.4.
## importtest.py
import sys, os, shutil
def test(name):
try:
## create 'foo/__init__.py' file
os.mkdir(name)
with open(name + "/__init__.py", 'w') as f:
f.write("X=1")
f.flush()
## ipmort 'foo' module
mod = __import__(name)
finally:
if os.path.isdir(name):
shutil.rmtree(name)
test("foo") # no errors
test("bar") # may raise error on Python >= 3.4. Why?
Output Example:
### No errors (Python <= 3.3)
ubuntu$ export PYTHONPATH=.
ubuntu$ for x in 1 2 3 ; do /usr/bin/python3.3 importtest.py; done
### ImportError (Python >= 3.4)
ubuntu$ export PYTHONPATH=.
ubuntu$ for x in 1 2 3 ; do /usr/bin/python3.4 importtest.py; done
Traceback (most recent call last):
File "tmp/importtest.py", line 19, in <module>
test("bar") # may raise error on Python >= 3.4. Why?
File "tmp/importtest.py", line 13, in test
mod = __import__(name)
ImportError: No module named 'bar'
Please give me any advices or hints.
Thanks.
Things to try:
Does the order matter? If you try "bar" then "foo" does "foo" fail?
Does the directory matter?
Is there something called "bar" in the directory already?
What does the created "bar" directory contain? Does it really contain
only "__init__.py"?
You're testing the script 3 times; on which iteration does it fail?
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