How do I convert a datetime to date?
How do I convert a datetime.datetime object (e.g., the return value of datetime.datetime.now()) to a datetime.date object in Python?
python
From ND to 1D arrays
Say I have an array a:
Local (?) variable referenced before assignment
UnboundLocalError: local variable ‘test1’ referenced before assignment.
How to check a string for specific characters?
How can I check if a string has several specific characters in it using Python 2?
How to print a generator expression?
In the Python shell, if I enter a list comprehension such as:
Given a URL to a text file, what is the simplest way to read the contents of the text file?
In Python, when given the URL for a text file, what is the simplest way to access the contents off the text file and print the contents of the file out locally line-by-line without saving a local copy of the text file?
How can I verify if one list is a subset of another?
I need to verify if a list is a subset of another – a boolean return is all I seek.
imread returns None, violating assertion !_src.empty() in function ‘cvtColor’ error
I am trying to do a basic colour conversion in python however I can’t seem to get past the below error. I have re-installed python, opencv and tried on both python 3.4.3 (latest) and python 2.7 (which is on my Mac).
List on python appending always the same value
I have the following code inside a while loop. if gender == 0 and len(men) < 51 : height = float((random.uniform(1.3, 1.9) + (random.randint(10, 20)/100.)).__format__('.2f')) weight = float((random.uniform(45, 100) * height).__format__('.2f')) attr['height'] = height attr['weight'] = weight men.append(attr) So this code always gives some random height and random weight. But outsite de loop (when it … Read more
How can I intercept calls to python’s “magic” methods in new style classes?
I’m trying to intercept calls to python’s double underscore magic methods in new style classes. This is a trivial example but it show’s the intent: