python pdb trace

Everyone knows that Python is a built-in Pdb library, and it is very convenient to debug Python programs using Pdb. However, Pdb cannot be used for remote debugging and multithreading. let's take a look at how to debug Python and

Label:Debug The first method is simple and straightforward, which is to print print out the variables that might be problematic: >>> def foo (s): n= Int (s) print ' >>> n =%d '% n return 10/n >>> def main (): C6/>foo (' 0 ') >>> main () >>> n = 0 Traceback (most recent call last): File " 　　 Assertion Where print is used to assist in viewing, you can replace it with an assertion (assert): >>> def foo (s): N=int (s) assertn!=0, ' n is zero ' return10/n >>> def main (): foo (' 0 ') >>

The Python programming language is easier for experienced developers to get started with and has powerful functions. It is an object-oriented general programming language, it helps us easily fulfill various functional requirements. Today, we will introduce the debugging methods of Python PDB. Analysis on how Python c

You can also debug a program in Python like Gcc/gdb, by introducing a PDB module when you run a Python program (assuming that the program you want to debug is named d.py): Copy Code code as follows: $ VI d.py #!/usr/bin/python def main ():I, sum = 1, 0For I in Xrange (100):sum = sum + IPrint sum

Tags: mes Microsoft stdout enters HTTP targe nbsp not function pdb/ipdb modules /pdb/ipdb module The main role of PDB and IPDB is for single-step debugging of Python programs, and Python debugging can refer to links. Here is a simple example of using 1 Import ipdb 2 3

Pdb.set_trace () at the specified position in the code can usually be controlled by a debug switch The code is as follows: Import PDB __debug__ = True def pdb_test (ARG):if True = = __debug__:Pdb.set_trace ()For I in range (ARG):Print (i)return arg Pdb_test (3) Pdb.set_trace () position is broken after run, when __debug__ = False, the code runs correctly The code is as follows: > c:\users\plpcc\desktop\pdbtest.py (8) pdb_test ()-I in Range (ARG):(

You can also debug a program in Python like Gcc/gdb, as long as the PDB module is introduced when you run the Python program (assuming that the program you are debugging is named d.py): The code is as follows: $ VI d.py#!/usr/bin/python def main ():I, sum = 1, 0For I in Xrange (100):sum = sum + IPrint sum if __name__

Tags: order code debug CIN div TPS Debug Set final variable1 descriptionThe PDB is a Python-brought package that provides an interactive source code debugging function for Python programs. Key features include setting breakpoints, stepping through debugging, entering function debugging, viewing current code, viewing stack fragments, dynamically changing the value

specified number of rows(Pdb) J 497>/home/jchen/regression/regressionlogcmp.py (497) comparelog ()pdb.set_trace ()A (RGS), prints the parameters of the current function(Pdb) a_logger =_base =./base/mrm-8137.log_new =./new/mrm-8137.log_caseid = 5550001_tostepnum = Ten_cmpmap = {' _bcmpbinarylog ': ' true ', ' _bcmplog ': ' true ', ' _bcmpresp ': ' True '}p, one of the most useful commands to print a variabl

This article discusses how to use PDB to debug Python without convenient ide tools. Program Source code example For example, there is a program to simulate tax calculation :#! /Usr/bin/Python Def debug_demo (VAL ): If Val Print "Level 1"Print 0Elif Val Print "Level 2"Print (Val-1600) * 0.05Elif Val Print "Level 3"Print (Val-3500) * 0.10 + (3500-1600) * 0.05Els

Method One: Run python-m pdb pythonname.py (PDB) automatically stops at the first line and waits for debugging, so you can look at the Help (Pdb) H Description of these key commands > Breakpoint Settings (Pdb) B #断点设置在本py的第10行 or (Pdb