Tag Archives: python

How to get pypi statistics about package download

Posted on March 19, 2018 by Thomas Cokelaer

Tweet A while ago, I designed pypiview, a Python package used to fetch the number of downloads for a package hosted on pypi website. It used to work decently but according to pypi itself the values stored are not reliable … Continue reading →

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Difference between __repr__ and __str__ in Python

Posted on December 26, 2017 by Thomas Cokelaer

Tweet When implementing a class in Python, you usually implement the __repr__ and __str__ methods. __str__ should print a readable message __repr__ should print a message that is unambigous (e.g. name of an identifier, class name, etc). You can see … Continue reading →

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pytest-cov collects no data on Travis

Posted on January 15, 2017 by Thomas Cokelaer

Tweet I recently switched from nosetests to pytest and pytest-cov for one of my Python project (http://easydev-python.readthedocs.io). Locally, everything seemed to work fine and once on Travis, all tests passed as expected. Yet, before the coverage report, I noticed this … Continue reading →

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Installing Python2.6 in a virtual environment

Posted on August 19, 2014 by Thomas Cokelaer

Tweet First, install python2.6 executable. see previous post if you have issues when compiling (gcc not found). Make sure you have installed python-dev with apt-get or yum. Then, following the instructions on the same topic but for Python 3 in … Continue reading →

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Installation of Python 2.6 error fixed

Posted on August 19, 2014 by Thomas Cokelaer

Tweet I wanted to install python2.6 in a virtual environment. The first step was to compile python 2.6 executable from the source code. Once the source are extracted, just type:

If you are lucky, everything is smooth and you … Continue reading →

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New software on pypi: pypiview

Posted on August 16, 2014 by Thomas Cokelaer

Tweet I’ve moved an old code into a new Pypi package and took the opportunity to play around with the badges. The new package called pypiview is now available on pypi. It allows one to easily look at the number … Continue reading →

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Python function chmod to change permission

Posted on August 1, 2014 by Thomas Cokelaer

Tweet I naively tried the function chmod from the standard python module called os to change the permission of a file:

Checking in the unix command line (ls -l), I got an unexpected result:

I expected indeed a … Continue reading →

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Python : How to flush output of print

Posted on March 24, 2014 by Thomas Cokelaer

Tweet Using the sys module, just type:

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python argparse issues with the help argument (TypeError: %o format: a number is required, not dict)

Posted on March 18, 2014 by Thomas Cokelaer

Tweet Even though Python has a great documentation, once in a while you get stuck on a single problem more than expected. It happenned to me today with the argparse module, which I thought I knew enough to quickly code … Continue reading →

Posted in Python | Tagged | 24 Comments

Starting to use Python Pandas library

Posted on January 29, 2014 by Thomas Cokelaer

Tweet Pandas is brilliant. If you are looking to manipulate data in Python, use it. I am refactoring most of my codes with this library. It provides many useful data structures to manipulate data in 2, 3, 4 dimensions and … Continue reading →

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