PythonWise

If it won't be simple, it simply won't be. [source code]

Monday, September 29, 2014

draft2gist - Publish draftin.com Documents to gist

I've started playing with draftin.com, so far very nice.

draftin.com lets you publish documents to several sites, and if the site you want to publish to is not on the list - there are WebHooks.

I've written a small AppEngine service that is a WebHook for publishing draftin.com documents to gist. Feel free to use it and let me know if you find any errors.

Below is the server code, rest of the files are here.

Monday, September 22, 2014

HTTP Proxy Stripping Headers (go)

At one of my clients, we wanted to write an HTTP proxy that strips some of the headers sent from the target (backend). With the help of golang-nuts mailing list - this turned out to be pretty simple.

Sunday, August 24, 2014

timeat on pypi

timeat is now on pypi. There's some extra code to get current time from NTP server. Should work both on Python 2.x and 3.x

Thursday, July 31, 2014

timeat in Go

Wrote timeat, which shows time at a specific location, in Go as well. (For comparison the Python version is here). To install either go get bitbucket.org/tebeka/timeat or download the executables.

Working in a multi-timezone team, this script comes handy from time to time (as well as worldtimebuddy :).


Wednesday, July 16, 2014

Generating Byte Arrays for Assets in Go using xxd

Go's net/http server is pretty fast, but sometimes you want to get faster. One way to do that is to create a binary array in memory for static files (assets). Here's how I generate the byte arrays automatically with xxd.

Note that this makes the build go slower as you have more and bigger assets.If this is a problem, take a look at nrsc ;)

Since the go toolchain does not support custom steps currently, I'm using make.

Makefile

httpd.go

Sunday, July 06, 2014

Hook to Update Tag List when Changing git Branch

I use ctags with Vim to move around. At work we use git feature branches, which means code changes when you switch a branch. Here's a very simple post-checkout hook to update the tag list whenever you switch branches.

Thursday, June 26, 2014

Use dict to Speed Up Your Code

In Python, dictionary access is very fast. You can use that to get some speedup in your code  by replacing if/else with dictionary get.

In [1]: fn1 = lambda x: 1 if x == 't' else 0

In [2]: fn2 = {'t': 1, 'f': 0}.get

In [3]: %timeit fn1('y')  # Check "True" branch
10000000 loops, best of 3: 124 ns per loop

In [4]: %timeit fn2('y')
10000000 loops, best of 3: 79.6 ns per loop

In [5]: %timeit fn1('f')  # Check "False" branch
10000000 loops, best of 3: 125 ns per loop

In [6]: %timeit fn2('f')
10000000 loops, best of 3: 81.3 ns per loop

About 30% speedup - not bad :)

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