python-2.7 Archives - Page 3 of 160

Using abc.ABCMeta in a way it is compatible both with Python 2.7 and Python 3.5

January 8, 2021 Andrew Rocky

Question or problem about Python programming: I’d like to create a class which has abc.ABCMeta as a metaclass and is compatible both with Python 2.7 and Python 3.5. Until now, I only succeeded doing this either on 2.7 or on 3.5 – but never on both versions simultaneously. Could someone give me a hand?

Find all CSV files in a directory using Python

January 8, 2021 Abreonia Ng

Question or problem about Python programming: How can I find all files in directory with the extension .csv in python?

Comparing two pandas dataframes for differences

January 8, 2021 Simon Abital

Question or problem about Python programming: I’ve got a script updating 5-10 columns worth of data , but sometimes the start csv will be identical to the end csv so instead of writing an identical csvfile I want it to do nothing…

Python: Assign Value if None Exists

January 7, 2021 Jeffrey Schneider

Question or problem about Python programming: I am a RoR programmer new to Python. I am trying to find the syntax that will allow me to set a variable to a specific value only if it wasn’t previously assigned. Basically I want:

Functions Defined The core of extensible programming is defining functions. Python allows mandatory and optional arguments, keyword arguments, and even arbitrary argument lists.

How to pickle a namedtuple instance correctly

January 7, 2021 Bell Jacquise

Question or problem about Python programming: I’m learning how to use pickle. I’ve created a namedtuple object, appended it to a list, and tried to pickle that list. However, I get the following error:

Python is a powerful general-purpose programming language.

pandas: find percentile stats of a given column

January 7, 2021 Simon Abital

Question or problem about Python programming: I have a pandas data frame my_df, where I can find the mean(), median(), mode() of a given column:

Read from a gzip file in python

January 7, 2021 Ollie MC

Question or problem about Python programming: I’ve just make excises of gzip on python.

How to use 2to3 properly for python?

January 7, 2021 Aba Tayler

Question or problem about Python programming: I have some code in python 2.7 and I want to convert it all into python 3.3 code. I know 2to3 can be used but I am not sure exactly how to use it.

How to specify where a Tkinter window opens?

January 6, 2021 Aba Tayler

Question or problem about Python programming: How can I tell a Tkinter window where to open, based on screen dimensions? I would like it to open in the middle.

Is there a need to close files that have no reference to them?

January 6, 2021 Bell Jacquise

Question or problem about Python programming: As a complete beginner to programming, I am trying to understand the basic concepts of opening and closing files. One exercise I am doing is creating a script that allows me to copy the contents from one file to another.