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What is the purpose of Flask's context stacks?
...backend". In other words, the Flask(...) application constructor has been called twice, creating two instances of a Flask application.
Contexts
When you are working with Flask, you often end up using global variables to access various functionality. For example, you probably have code that reads.....
How to avoid circular imports in Python? [duplicate]
....py
Types of circular import problems
Circular import dependencies typically fall into two categories depending
on what you're trying to import and where you're using it inside each
module. (And whether you're using python 2 or 3).
1. Errors importing modules with circular imports
In some cases...
How to install Boost on Ubuntu
I'm on Ubuntu, and I want to install Boost. I tried with
7 Answers
7
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Does Python have “private” variables in classes?
...ass variables. In Java, nothing prevents you from doing the same if you really want to - after all, you can always edit the source of the class itself to achieve the same effect. Python drops that pretence of security and encourages programmers to be responsible. In practice, this works very nicely...
How do I remove all .pyc files from a project?
...
You are not quoting {}. What would happen if accidentally word-split and deleted an intermediate path which happens to be called like a fragment of the path you found?
– Robottinosino
Apr 3 '13 at 2:58
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Should __init__() call the parent class's __init__()?
...
In Python, calling the super-class' __init__ is optional. If you call it, it is then also optional whether to use the super identifier, or whether to explicitly name the super class:
object.__init__(self)
In case of object, calling th...
Delete directory with files in it?
I wonder, what's the easiest way to delete a directory with all its files in it?
33 Answers
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How to remove an element from a list by index
...org/projects/python/trunk/Objects/listobject.c how PyList_GetItem() essentially returns ((PyListObject *)op) -> ob_item[i]; - the ith element of an array.
– glglgl
Sep 9 '13 at 7:53
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How to remove all of the data in a table using Django
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Inside a manager:
def delete_everything(self):
Reporter.objects.all().delete()
def drop_table(self):
cursor = connection.cursor()
table_name = self.model._meta.db_table
sql = "DROP TABLE %s;" % (table_name, )
cursor.execute(sql)
...
How to automatically generate a stacktrace when my program crashes
... the GCC compiler. When my C++ program crashes I would like it to automatically generate a stacktrace.
28 Answers
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