Can’t set attributes on instance of “object” class
So, I was playing around with Python while answering this question, and I discovered that this is not valid:
python
Animated sprite from few images
I’ve been searching for some good tutorial about making simple sprite animation from few images in Python using Pygame. I still haven’t found what I’m looking for.
sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and there are 74 supplied
def insert(array): connection=sqlite3.connect('images.db') cursor=connection.cursor() cnt=0 while cnt != len(array): img = array[cnt] print(array[cnt]) cursor.execute('INSERT INTO images VALUES(?)', (img)) cnt+= 1 connection.commit() connection.close() I cannot figure out why this is giving me the error, The actual string I am trying to insert is 74 chars long, it’s: “/gifs/epic-fail-photos-there-i-fixed-it-aww-man-the-tire-pressures-low.gif” I’ve tried to str(array[cnt]) before inserting it, but … Read more
Getting realtime output using subprocess
I am trying to write a wrapper script for a command line program (svnadmin verify) that will display a nice progress indicator for the operation. This requires me to be able to see each line of output from the wrapped program as soon as it is output.
How to emulate a do-while loop?
I need to emulate a do-while loop in a Python program. Unfortunately, the following straightforward code does not work:
How to check for palindrome using Python logic
I’m trying to check for a palindrome with Python. The code I have is very for-loop intensive.
What do ellipsis […] mean in a list?
I was playing around in python. I used the following code in IDLE:
How can you print a variable name in python?
Say I have a variable named choice it is equal to 2. How would I access the name of the variable? Something equivalent to In [53]: namestr(choice) Out[53]: 'choice' for use in making a dictionary. There’s a good way to do this and I’m just missing it. EDIT: The reason to do this is thus. … Read more
Iterate over all pairs of consecutive items in a list
Given a list l = [1, 7, 3, 5] I want to iterate over all pairs of consecutive list items (1,7), (7,3), (3,5), i.e. for i in xrange(len(l) – 1): x = l[i] y = l[i + 1] # do something I would like to do this in a more compact way, like for x, … Read more
How to sort a list of lists by a specific index of the inner list?
I have a list of lists. For example,