Make Pandas groupby act similarly to itertools groupby
Suppose I have a Python dict of lists like so:
python
NLTK Named Entity recognition to a Python list
I used NLTK’s ne_chunk to extract named entities from a text:
Format string unused named arguments
Let’s say I have: action = '{bond}, {james} {bond}'.format(bond='bond', james='james') this wil output: 'bond, james bond' Next we have: action = '{bond}, {james} {bond}'.format(bond='bond') this will output: KeyError: 'james' Is there some workaround to prevent this error to happen, something like: if keyrror: ignore, leave it alone (but do parse others) compare format string with … Read more
How to spread a column in a Pandas data frame
I have the following pandas data frame:
How can I install PIL on mac os x 10.7.2 Lion
I’ve tried googling & looking up some other people’s questions. However, I still couldn’t find a clear/simple recipe to install PIL (for python 2.6 or 2.7) on mac os x 10.7.2 Lion.
PIL and pygame.image
I had opened an image using PIL, as
What is the best approach to change primary keys in an existing Django app?
I have an application which is in BETA mode. The model of this app has some classes with an explicit primary_key. As a consequence Django use the fields and doesn’t create an id automatically.
Get formula from Excel cell with python xlrd
I have to port an algorithm from an Excel sheet to python code but I have to reverse engineer the algorithm from the Excel file.
Remove all newlines from inside a string
I’m trying to remove all newline characters from a string. I’ve read up on how to do it, but it seems that I for some reason am unable to do so. Here is step by step what I am doing:
How to enumerate a range of numbers starting at 1
I am using Python 2.5, I want an enumeration like so (starting at 1 instead of 0):