Puzzling output when executing .pyc file directly

[Steven D'Aprano]

I created a simple test file called "tester.py":


def dostuff(obj):
print "Doing stuff with %s now..." % obj
return len(str(obj))
x = "things"
if __name__ == "__main__":
print dostuff(x)


imported it into Python, then exited the current Python
session. Then I compared the results of calling the .py
file with those from calling the .pyc file:


bash-2.03$ python tester.py
Doing stuff with things now...
6

bash-2.03$ python tester.pyc
Doing stuff with things now...
6
run_pyc_file: nested_scopes: 0


Can anyone tell me what the run_pyc_file line is doing
in the output of the .pyc file? Is that normal
behaviour when calling a .pyc file?

For my sins, I am using Python 2.1.1 on sunos5.



Thanks,

 

[Steve Holden]

I created a simple test file called "tester.py":


def dostuff(obj):
print "Doing stuff with %s now..." % obj
return len(str(obj))
x = "things"
if __name__ == "__main__":
print dostuff(x)


imported it into Python, then exited the current Python
session. Then I compared the results of calling the .py
file with those from calling the .pyc file:


bash-2.03$ python tester.py
Doing stuff with things now...
6

bash-2.03$ python tester.pyc
Doing stuff with things now...
6
run_pyc_file: nested_scopes: 0


Can anyone tell me what the run_pyc_file line is doing
in the output of the .pyc file? Is that normal
behaviour when calling a .pyc file?

No and no

For my sins, I am using Python 2.1.1 on sunos5.

Don't know whether that was a 2.1.1-specific problem, but that's
certainly not how 2.4.1 behaves. But then, you knew that already, didn't
you?

regards
Steve

 

[Peter Otten]

bash-2.03$ python tester.pyc
Doing stuff with things now...
6
run_pyc_file: nested_scopes: 0


Can anyone tell me what the run_pyc_file line is doing
in the output of the .pyc file? Is that normal
behaviour when calling a .pyc file?

For my sins, I am using Python 2.1.1 on sunos5.

"that's just a random debugging printf left in by mistake"

http://mail.python.org/pipermail/python-list/2002-April/096463.html

Peter