How to know if urllib.urlretrieve succeeds?
urllib.urlretrieve returns silently even if the file doesn’t exist on the remote http server, it just saves a html page to the named file. For example:
python
How to configure Python Kivy for PyCharm on Windows?
I’m having trouble getting Kivy to work with PyCharm on Windows 7. I’ve managed to add most of the external libraries through File > Settings > Python interpreters > Paths Tab.
Polar contour plot in matplotlib – best (modern) way to do it?
Update: I’ve done a full write-up of the way I found to do this on my blog at http://blog.rtwilson.com/producing-polar-contour-plots-with-matplotlib/ – you may want to check there first.
why isn’t numpy.mean multithreaded?
I’ve been looking for ways to easily multithread some of my simple analysis code since I had noticed numpy it was only using one core, despite the fact that it is supposed to be multithreaded.
Removing character in list of strings
If I have a list of strings such as:
Meaning of end=” in the statement print(“t”,end=”)?
This is the function for printing all values in a nested list (taken from Head first with Python). def printall(the_list, level): for x in the_list: if isinstance(x, list): printall(x, level=level + 1) else: for tab_stop in range(level): print("t", end='') print(x) The function is working properly. The function basically prints the values in a list and … Read more
Negation in Python
I’m trying to create a directory if the path doesn’t exist, but the ! (not) operator doesn’t work. I’m not sure how to negate in Python… What’s the correct way to do this?
Convert JSON to XML in Python
I see a number of questions on SO asking about ways to convert XML to JSON, but I’m interested in going the other way. Is there a python library for converting JSON to XML?
View RDD contents in Python Spark?
Running a simple app in pyspark.
Unpivot Pandas Data
I currently have a DataFrame laid out as: