Is there a way in Pandas to use previous row value in dataframe.apply when previous value is also calculated in the apply?
I have the following dataframe:
iteration
Iterate over object attributes in python
I have a python object with several attributes and methods. I want to iterate over object attributes. class my_python_obj(object): attr1='a' attr2='b' attr3='c' def method1(self, etc, etc): #Statements I want to generate a dictionary containing all of the objects attributes and their current values, but I want to do it in a dynamic way (so if … Read more
What is the perfect counterpart in Python for “while not EOF”
To read some text file, in C or Pascal, I always use the following snippets to read the data until EOF:
recursive iteration through nested json for specific key in python
I’m trying to pull nested values from a json file. I want to print out each of the values for every “id” key. I think I’m close but can’t figure out why the obj type changes from a dict to a list, and then why I’m unable to parse that list.
Here is a link to the json I’m working with: http://hastebin.com/ratevimixa.tex
How to loop over grouped Pandas dataframe?
DataFrame:
Grouping / clustering numbers in Python
I’ve googled, I’ve tested, and this has me at my wits end. I have a list of numbers I need to group by similarity. For instance, in a list of [1, 6, 9, 100, 102, 105, 109, 134, 139], 1 6 9 would be put into a list, 100, 102, 105, and 109 would be put into a list, and 134 and 139. I’m terrible at math, and I’ve tried and tried this, but I can’t get it to work. To be explicit as possible, I wish to group numbers that are within 10 values away from one another. Can anyone help? Thanks.
Is there a better way to iterate over two lists, getting one element from each list for each iteration?
A. Assume that the lists are of equal lengths:
Modify a list while iterating
I know you should not add/remove items while iterating over a list. But can I modify an item in a list I’m iterating over if I do not change the list length?
Intersecting two dictionaries
I am working on a search program over an inverted index. The index itself is a dictionary whose keys are terms and whose values are themselves dictionaries of short documents, with ID numbers as keys and their text content as values.
What exactly is Python’s iterator protocol?
Is there an objective definition? Is it implemented as a fragment of python’s source code? If so, could someone produce the exact code lines? Have all languages with, say, a ‘for’ statement iterator protocols of their own?