Hello,
Today I came across something that looks like a (small) bug.
In my project I have a file called "Logging.py" (capital L), in the root of the
project.
This project imports reportlab (the reporting library).
In python 3.4, it doesn't work once frozen. It gives a stacktrace during the
imports.
In that stacktrace, in the chain of imports, I see that reportlab
imports the logging module (the one from Python I guess). But strangely,
right after in the stack trace, I see that cx_freeze is in my Logging
module. So I'm wondering if there's a problem when matching names
of module (naming my logging module "Logging" is, of course, a bit dangerous,
but that decision was taken a long time ago, when I was still learning Python
:-) )
When I change the name of my "Logging.py" module to something different, like
"aaa.py", then it works fine.
I've reproduced this bug with two files.
I put both these files in a directory called "testcx", plus an additional
__init__.py
Here there are :
------------------- app.py
# The report lab stuff is there to trigger the imports
# it can probably reduced to a few well chosen imports
from reportlab import platypus
from reportlab.lib.pagesizes import A4
from reportlab.lib import colors
from reportlab.lib.units import inch,cm
from reportlab.platypus import Paragraph,BaseDocTemplate
from reportlab.graphics.barcode import createBarcodeDrawing
from reportlab.lib.enums import TA_CENTER,TA_RIGHT
from reportlab.pdfgen import canvas
from reportlab.lib.styles import ParagraphStyle
import testcx.Logging
s = ParagraphStyle(name = "zou", fontName = 'Helvetica')
print("app")
------------------- Logging.py
print("Logging module")
Then I do :
set PYTHONPATH=... the path that *contains* the testcx directory
I freeze the app :
python \PORT-STCA2\opt\python3\Scripts\cxfreeze testcx\app.py
When I run :
dist\app.exe
I get :
C:\PORT-STCA2\pl-PRIVATE\horse>dist\app.exe
Logging module
Traceback (most recent call last):
File
"C:\PORT-STCA2\opt\python3\lib\site-packages\cx_Freeze\initscripts\Console.py",
line 27, in <module>
exec(code, m.__dict__)
File "testcx\app.py", line 1, in <module>
from reportlab import platypus
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 2284, in
_handle_fromlist
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 321, in
_call_with_frames_removed
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 2237, in
_find_and_load
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 2226, in
_find_and_load_unlocked
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 1191, in
_load_unlocked
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 1161, in
_load_backward_compatible
File
"C:\PORT-STCA2\opt\python3\lib\site-packages\reportlab\platypus\__init__.py",
line 12, in <module>
from reportlab.platypus.tables import Table, TableStyle, CellStyle,
LongTable
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 2237, in
_find_and_load
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 2226, in
_find_and_load_unlocked
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 1191, in
_load_unlocked
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 1161, in
_load_backward_compatible
File
"C:\PORT-STCA2\opt\python3\lib\site-packages\reportlab\platypus\tables.py",
line 28, in <module>
from reportlab.platypus.doctemplate import Indenter
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 2237, in
_find_and_load
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 2226, in
_find_and_load_unlocked
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 1191, in
_load_unlocked
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 1161, in
_load_backward_compatible
File
"C:\PORT-STCA2\opt\python3\lib\site-packages\reportlab\platypus\doctemplate.py",
line 34, in <module>
from reportlab.platypus.frames import Frame
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 2237, in
_find_and_load
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 2226, in
_find_and_load_unlocked
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 1191, in
_load_unlocked
File "c:\python\32-bit\3.4\lib\importlib\_bootstrap.py", line 1161, in
_load_backward_compatible
File
"C:\PORT-STCA2\opt\python3\lib\site-packages\reportlab\platypus\frames.py",
line 11, in <module>
logger = logging.getLogger('reportlab.platypus')
AttributeError: 'module' object has no attribute 'getLogger'
The script works perfectly fine when run through Python interpreter...
I use python 3.4.2 and cx_freeze 4.3.4 on Windows 7.
Maybe this is a problem because of Windows is case insensitive on file names ?
But then,
why is cx_freeze's behaviour different ?
Right now this is not much of a problem for me, I've just renamed my python
logging module
to a saner name. I've also checked cxFreeze code a bit and didn't see anything
obvious.
stF
--
Timeo Danaos et dona ferentes
Twitter : @Arakowa1
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