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===========
coverage.py
===========
.. toctree::
:hidden:
cmd
api
Coverage.py is a tool for measuring code coverage of Python programs. It monitors
your program, noting which parts of the code have been executed, then analyzes the
source to identify code that could have been executed but was not.
Quick Start
-----------
Install coverage.py from the cheeseshop.
Run coverage.py to execute your program and gather data::
$ coverage -e -x my_program.py
blah blah your program's output blah blah
Run coverage.py to report on the results::
$ coverage -r -m
Name Stmts Exec Cover Missing
-------------------------------------------------------
my_program 20 16 80% 33-35, 39
my_other_module 56 50 89% 517-523
-------------------------------------------------------
TOTAL 76 66 87%
For a nicer presentation, run coverage.py to get annotated HTML listings
detailing missed lines::
coverage -b -d htmlcov
Then visit htmlcov/index.html in your browser.
Using coverage.py
-----------------
There are two supported interfaces to coverage: a :ref:`command line <cmd>` and
an :ref:`API <api>`.
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