plot a circle with pyplot
surprisingly I didn’t find a straight-forward description on how to draw a circle with matplotlib.pyplot (please no pylab) taking as input center (x,y) and radius r. I tried some variants of this:
python
How do I convert this list of dictionaries to a csv file?
I have a list of dictionaries that looks something like this:
How to run Spyder in virtual environment?
I have been using Spyder installed with with Anaconda distribution which uses Python 2.7 as default. Currently I need to set up a development virtual environment with Python 3.4.
multiple axis in matplotlib with different scales
How can multiple scales can be implemented in Matplotlib? I am not talking about the primary and secondary axis plotted against the same x-axis, but something like many trends which have different scales plotted in same y-axis and that can be identified by their colors. For example, if I have trend1 ([0,1,2,3,4]) and trend2 ([5000,6000,7000,8000,9000]) … Read more
Pythonic way to return list of every nth item in a larger list
Say we have a list of numbers from 0 to 1000. Is there a pythonic/efficient way to produce a list of the first and every subsequent 10th item, i.e. [0, 10, 20, 30, ... ]?
Is it possible to implement a Python for range loop without an iterator variable?
Is it possible to do following without the i?
How to find the last occurrence of an item in a Python list
Say I have this list:
jsonify a SQLAlchemy result set in Flask
marshmallow is an ORM/ODM/framework-agnostic library for converting
complex datatypes, such as objects, to and from native Python
datatypes.
Calling filter returns
I am learning the concept of filters in Python. I am running a simple code like this. >>> def f(x): return x % 2 != 0 and x % 3 != 0 >>> filter(f, range(2, 25)) But instead of getting a list, I am getting some message like this. <filter object at 0x00FDC550> What does … Read more
String concatenation without ‘+’ operator
I was playing with python and I realized we don’t need to use ‘+’ operator to concatenate static strings. But it fails if I assign it to a variable.