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Python constructors and __init__
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There is no function overloading in Python, meaning that you can't have multiple functions with the same name but different arguments.
In your code example, you're not overloading __init__(). What happens is that the second definition rebinds the name __init__...
Calling a base class's classmethod in Python
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If you're using a new-style class (i.e. derives from object in Python 2, or always in Python 3), you can do it with super() like this:
super(Derived, cls).do(a)
This is how you would invoke the code in the base class's version of the method (i.e. print cls, a), from the derived class,...
Python style - line continuation with strings? [duplicate]
In trying to obey the python style rules, I've set my editors to a max of 79 cols.
5 Answers
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Django migration strategy for renaming a model and relationship fields
... models.IntegerField()
is_ridonkulous = models.BooleanField()
Then
python manage.py makemigrations
python manage.py migrate
Step 2: (Like step 2-4 from Fiver)
Change the model name
class Bar(models.Model): # <-- changed model name
name = models.CharField(unique=True, max_length=...
python: how to identify if a variable is an array or a scalar
... sure, but avoid type, and also check not isinstance(x, (str, unicode)) on Python 2
– jamylak
Feb 10 '15 at 11:04
Why ...
What is the difference between setUp() and setUpClass() in Python unittest?
What is the difference between setUp() and setUpClass() in the Python unittest framework? Why would setup be handled in one method over the other?
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Is there a Python equivalent of the C# null-coalescing operator?
...cing operator.
In fact, it may even be useful to have this side-effect of Python. Since you know what values evaluates to false, you can use this to trigger the default value without using None specifically (an error object, for example).
In some languages this behavior is referred to as the Elvis...
Importing a CSV file into a sqlite3 database table using Python
...SV file and I want to bulk-import this file into my sqlite3 database using Python. the command is ".import .....". but it seems that it cannot work like this. Can anyone give me an example of how to do it in sqlite3? I am using windows just in case.
Thanks
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How do I get monitor resolution in Python?
...trics(1))
If you are working with high resolution screen, make sure your python interpreter is HIGHDPIAWARE.
Based on this post.
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Strip HTML from strings in Python
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I always used this function to strip HTML tags, as it requires only the Python stdlib:
For Python 3:
from io import StringIO
from html.parser import HTMLParser
class MLStripper(HTMLParser):
def __init__(self):
super().__init__()
self.reset()
self.strict = False
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