Register Python

June-19-16

Register-python.py - Install or remove python from current environment into the Windows registry 

When asked to install:

If our python version and installpath is in registry: do nothing.
If our python version and different installpath: do nothing.
If our python is not there, add it.

When asked to remove:

If our python is not there: do nothing
If our python version and different installpath: do nothing.
If our python version and installpath is in registry: remove.

Original written by Joakim Löw for Secret Labs AB / PythonWare.
Modified by Matt Wilkie for OSGeo4W
   http://trac.osgeo.org/osgeo4w/ticket/114

Adapted from:

http://www.pythonware.com/products/works/articles/regpy20.htm
http://effbot.org/zone/python-register.htm
http://timgolden.me.uk/python-on-windows/programming-areas/registry.html

Known problems:

Doesn't detect existing python registrations on 64bit machines,
see http://www.mail-archive.com/python-list@python.org/msg266397.html

Register Python

For register-python we'll just use the py27 approach for now, and resign to not working in some cases. (i.e. known issue, not going to fix at present, but someday would like to) 

string1 = 'Hello' 
string2 = 'hello' 
if string1.lower() == string2.lower(): 
print "The strings are the same (case insensitive)" 
else: 
print "The strings are not the same (case insensitive)" 

But breaks on Unicode, accents, etc. We can deal with that in Python3 with:

import unicodedata 
def normalize_caseless(text): 
return unicodedata.normalize("NFKD", text.casefold()) 
def caseless_equal(left, right): 
return normalize_caseless(left) == normalize_caseless(right) 

From < http://stackoverflow.com/questions/319426/how-do-i-do-a-case-insensitive-string-comparison-in-python > 

Future

Be nice to turn this into a Textualize app