Category: Python

Python

Unify Saved Me from Manual Quote Hell

Ever had a coding style quirk that slowly drives you mad? At work, our team follows the Black code style — with one exception: single quotes over double. Seems harmless, right? It turns out this one tiny deviation spawns a...

ProgrammingPython

Seeing info when changing virtualenvs with virtualenvwrapper

I wanted to see a bit about virtualenvs when I activate them with workon from virtualenvwrapper. I added the following to $VIRTUALENVWRAPPER_HOOK_DIR/postactivate: #!/bin/bash # This hook is run after every virtualenv is...

ProgrammingPython

Pull request to allow supervisor to send arbitrary signals to processes

https://github.com/Supervisor/supervisor/pull/477 Let's you do stuff like: $ supervisorctl cat:0 RUNNING pid 57305, uptime 0:00:07 cat:1 RUNNING pid 57304, uptime 0:00:07 cat:2 RUNNING pid 57307, uptime 0:00:07 cat:3 RUNNING pid...

MacProgrammingPython

Easier way to build _bsddb for OS X

I blogged previously about how to build _bsddb for Python 2.6 by hacking the Python source code to accommodate changes in berkeley-db. Here's an easier way that doesn't require hacking source code. Install berkeley-db using...

MacProgrammingPython

Building _bsddb for Python 2.6 on OS X 10.8.5

It's well-known that the Python that comes with OS X machines typically doesn't have _bsddb. I downloaded Python 2.6.8 and attempted to build it and it wouldn't build the _bsddb module. Here's what I did to fix this. I used...

ProgrammingPython

Make PyCrypto work with PyPy

I was trying to pip install PyCrypto in a PyPy virtualenv and kept getting build errors, mostly related to PyLongObject. I worked around the problem by uninstalling the gmp library. I'm on OS X so I did: brew uninstall gmp (If...

ProgrammingPython

Cython bug?

I have this Cython code: cdef struct MyStruct: int x def byte_bugginess(x=1): cdef char val = 1 cdef MyStruct foo print("1 - val = %d" % val) if x in (3, 4): print("2 - val = %d" % val) val = 2 print("3 - val = %d" % val) else:...