What is the syntax rule for having trailing commas in tuple definitions?
In the case of a single element tuple, the trailing comma is required.
Python
Loop “Forgets” to Remove Some Items
Note: There is a subtlety when the sequence is being modified by the
loop (this can only occur for mutable sequences, i.e. lists). An
internal counter is used to keep track of which item is used next, and
this is incremented on each iteration. When this counter has reached
the length of the sequence the loop terminates. This means that if the
suite deletes the current (or a previous) item from the sequence, the
next item will be skipped (since it gets the index of the current item
which has already been treated). Likewise, if the suite inserts an
item in the sequence before the current item, the current item will be
treated again the next time through the loop. This can lead to nasty
bugs that can be avoided by making a temporary copy using a slice of
the whole sequence, e.g.,
Pygame unresponsive display
has a game loop
How to “log in” to a website using Python’s Requests module?
I am trying to post a request to log in to a website using the Requests module in Python but its not really working. I’m new to this…so I can’t figure out if I should make my Username and Password cookies or some type of HTTP authorization thing I found (??).
Pygame doesn’t let me use float for rect.move, but I need it
I’ve recently recreated a version of Lunar Lander (you know, the old retro game) in Python 3 and Pygame: my lander moves (̀̀̀rect.move) each frame along the y axis because of gravity.
How to hide output of subprocess
I’m using eSpeak on Ubuntu and have a Python 2.7 script that prints and speaks a message:
How can I explicitly free memory in Python?
I wrote a Python program that acts on a large input file to create a few million objects representing triangles. The algorithm is:
Convert string to variable name in python
I have any string. like ‘buffalo’, x='buffalo' I want to convert this string to some variable name like, buffalo=4 not only this example, I want to convert any input string to some variable name. How should I do that (in python)? Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all … Read more
Speed up millions of regex replacements in Python 3
I have two lists:
How to POST JSON data with Python Requests?
I need to POST a JSON from a client to a server. I’m using Python 2.7.1 and simplejson. The client is using Requests. The server is CherryPy. I can GET a hard-coded JSON from the server (code not shown), but when I try to POST a JSON to the server, I get “400 Bad Request”.