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Top Forums Shell Programming and Scripting **python : passing list as argument and updating in definition Post 302952013 by Aia on Wednesday 12th of August 2015 01:41:01 PM
Old 08-12-2015
In Python the assignment operator `=' never copies data. Whatever is at the left of the `=' is a binding label to a value, not a variable per se. This is significant, since moving labels do not produce another variable.

I recommend you watch Ned Batchelder - Facts and Myths about Python names and values - PyCon 2015 if you are interested on it.
At 15:50 you'll get presentation related to your query, but I would watch it from the beginning since the concept of binding and rebinding labels builds from understanding mutable and immutable values.

Hope it helps.
 

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PYTHON-COVERAGE(1)					      General Commands Manual						PYTHON-COVERAGE(1)

NAME
python-coverage - measure code coverage of Python program execution SYNOPSIS
python-coverage -x module.py [ARG...] python-coverage -e python-coverage -r [-m] python-coverage -a [file...] DESCRIPTION
python-coverage executes a Python program and measures which of its statements are executed and which are not. It stores the information in the file .coverage in the current working directory. OPTIONS
-e Erase the .coverage file. -x Execute a Python module, giving it the remaining command line arguments. -r Produce a coverage report. -m With -r, show the line numbers that were missed by the execution. -a Annotate source files. For each source file foo, produce foo,cover, with executed lines prefixed by ">" and non-executed by "!". --help Produce a help summary. It might be more helpful than this manual page. AUTHOR
The python-coverage command is a one-line Python script which calls the coverage.py Python module to do all the work. The module was rigi- nally developed by Gareth Rees, and is now developed by Ned Batchelder. The module's home page is http://www.nedbatchelder.com/code/modules/coverage.html. This manual page was cobbled together by Lars Wirzenius for Debian, by copy-pasting from the help texts from the module. PYTHON-COVERAGE(1)
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