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Project Description
utilities for debugging of python scripts. prints stack backtraces that look similar to gdb stacktrace (gdb commands bt and bt full);
can be used instead of traceback.

Written by Michael Moser (c) 2015

Functions

die(*msg)
receives a variable number of arguments; prints each argument (with pprint) to standard error stream,
shows a detailed stack trace (also to standard error, see print_stack_ex, does not follow objects (follow_objects = 0);
exit program with error (status 1)
this is similar to die built in function in perl

die2(*msg)
receives a variable number of arguments; prints each argument (with pprint) to standard error stream,
shows a detailed stack trace (also to standard error, see print_stack_ex, does follow objects (follow_objects = 1);
exit program with error (status 1)
this is similar to die built in function in perl

print_exception_ex(follow_objects=0, file=None)
prints an exception with more detailed stack trace, is used as follows:
the function is similar to traceback.print_exception , just with more detailed stack trace

import pd

try:
<python code="">
except BaseException:
pd.print_exception_ex()


parameters:

follow_objects - if not 0 then representation of object values is printed
Please note that follow_objects=1 can generate a lot of output, and can take a lot of time. (default 0)

file - print to file (default value None - print to standard error stream)

example stack trace:

Exception: got it

#1 def kuku2(self = {'a': 42, 'b': [1, 2, 3, 4]}, depth = 1) at test_pd.py:29
Calls next frame at:
raise Exception('got it') at: test_pd.py:29

#2 def kuku2(self = {'a': 42, 'b': [1, 2, 3, 4]}, depth = 2) at test_pd.py:28
Calls next frame at:
kuku2( depth - 1 ) at: test_pd.py:28

#3 def kuku2(self = {'a': 42, 'b': [1, 2, 3, 4]}, depth = 3) at test_pd.py:28
Calls next frame at:
kuku2( depth - 1 ) at: test_pd.py:28

#4 def kuku2(self = {'a': 42, 'b': [1, 2, 3, 4]}, depth = 4) at test_pd.py:28
Calls next frame at:
kuku2( depth - 1 ) at: test_pd.py:28

#5 def kuku2(self = {'a': 42, 'b': [1, 2, 3, 4]}, depth = 5) at test_pd.py:28
Calls next frame at:
kuku2( depth - 1 ) at: test_pd.py:28

#6 def kuku2(self = {'a': 42, 'b': [1, 2, 3, 4]}, depth = 6) at test_pd.py:28
Calls next frame at:
kuku2( depth - 1 ) at: test_pd.py:28

#7 def main() at test_pd.py:44
Local variables:
n = {'a': 42, 'b': [1, 2, 3, 4]}
Calls next frame at:
pd.print_exception_ex( follow_objects = 1 ) at: test_pd.py:44


print_stack_ex(skipframes=0, follow_objects=0, file=None, frame=None)
print stack trace from an arbitrary point in the program;
the function is similar to traceback.print_stack , just with more detailed stack trace

the stack trace includes function names, values of parameters and values of local variables. i find it easier to debug with this stack trace.

parameters:
skipframes - skip a number of frames if is not 0 (default 0)

follow_objects - if not 0 then representation of object values is printed
Please note that follow_objects=1 can generate a lot of output, and can take a lot of time. (default 0)

file - print to file (default value None - print to standard error stream)

frame - specify a start frame (default None - show from calling function; deepest frame on top marked with #1)

this function is similar to traceback.print_stack , just with more detailed stack trace.

works for python 2.7, should work for other versions as well

example stack trace:

#1 def fact(n = 1) at test_pd.py:10
Local variables:
loc 2
loc2 [0]
Calls next frame at:
pd.print_stack_ex() at: test_pd.py:10

#2 def fact(n = 2) at test_pd.py:8
Local variables:
loc 4
loc2 [0, 1]
Calls next frame at:
return n * fact( n - 1 ) at: test_pd.py:8

#3 def fact(n = 3) at test_pd.py:8
Local variables:
loc 6
loc2 [0, 1, 2]
Calls next frame at:
return n * fact( n - 1 ) at: test_pd.py:8

#4 def fact(n = 4) at test_pd.py:8
Local variables:
loc 8
loc2 [0, 1, 2, 3]
Calls next frame at:
return n * fact( n - 1 ) at: test_pd.py:8

#5 def main() at test_pd.py:36
Local variables:
Calls next frame at:
print fact(4) at: test_pd.py:36

#6 def <module>() at test_pd.py:53
Calls next frame at:
main() at: test_pd.py:53
Release History

Release History

0.0.1

This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
pd-0.0.1.tar.gz (5.3 kB) Copy SHA256 Checksum SHA256 Source Mar 24, 2015

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