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How to sort Python dict (dictionary)

26th September 2007

Sample script (copypasted from Well House Consultants training course):
click the PLAIN TEXT header for copy-pasteable version

1. #!/usr/local/bin/python
2.  
3. author = {"php":"Rasmus Lerdorf",\
4.     "perl":"Larry Wall",\
5.     "tcl":"John Ousterhout",\
6.     "awk":"Brian Kernighan",\
7.     "java":"James Gosling",\
8.     "parrot":"Simon Cozens",\
9.     "python":"Guido van Rossum"}
10.  
11. langs = author.keys()
12. langs.sort()
13.  
14. for language in langs:
15.     print language,"is the child of",author[language]

You can also define the Python ksort() function similar to that found in PHP:

1. def ksort(d, func = None):
2.     keys = d.keys()
3.     keys.sort(func)
4.     return keys
5.  
6. # example use, assume 'd' is a dictionary
7. for k in ksort(d):
8.     print k, d[k]

(example taken from TheScript forum)

This entry was posted on Wednesday, September 26th, 2007 at 8:20 and is filed under Programming, Python. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

One Response to “How to sort Python dict (dictionary)”

1. Useful Python looping techniques »Autarchy of the Private Cave Says:
   June 3rd, 2009 at 12:50

   [...] – Python: good MySQLdb tutorial (examples)Good Python starter’s guideHow to sort Python dict (dictionary)Python: iterate (and read) all files in a directory (folder)Non-Programmer’s Tutorial for [...]

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