file returns differnet filenames #363

HahnloserR · 2024-12-02T09:05:17Z

when a jython script runs for the first time, file returns the source filename.

while running the script another time, file returns the name of the bytecode file.

Shouldn't it return the sourcefilename all the time? Is there a parameter to change the behaviour?

The behaviour seems to be changed with the update from V2.7.2 to V2.74.

jeff5 · 2024-12-03T07:34:08Z

I don't observe this in tests.

PS 363> jython -V
Jython 2.7.4
PS 363> cat filename.py
print __file__
PS 363> jython filename.py
filename.py
PS 363> jython filename.py
filename.py

If you import a module, then yes it makes a compiled file and reads it the second time, but so does CPython.

PS 363> jython -c"import filename"
filename.py
PS 363> jython -c"import filename"
filename$py.class
PS 363> python -c"import filename"
filename.py
PS 363> python -c"import filename"
filename.pyc

It may have changed since 2.7.2. We're always fixing things. :)

HahnloserR · 2024-12-05T06:32:47Z

Sorry, you're absolutely right, I was talking about an imported module.

I helped myself by disabling the generation of bytecode.
Is there a significant difference in execution time using bytecode or not?

jeff5 · 2024-12-06T19:48:50Z

I don't have any figures, and only the obvious to point out, that it does the compilation again.

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

file returns differnet filenames #363

file returns differnet filenames #363

Uh oh!

Uh oh!

Uh oh!

__file__ returns differnet filenames #363

__file__ returns differnet filenames #363

Comments

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!

file returns differnet filenames #363

file returns differnet filenames #363