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How to provide animation when calling another activity in Android?
...and maximize animation when Activity B calls A. I don't need the animation xml files for this.
4 Answers
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Flatten an irregular list of lists
... your example a little easier to read and probably boost the performance.
Python 2
def flatten(l):
for el in l:
if isinstance(el, collections.Iterable) and not isinstance(el, basestring):
for sub in flatten(el):
yield sub
else:
yield el
...
Random string generation with upper case letters and digits
...ercase + string.digits) for _ in range(N))
or even shorter starting with Python 3.6 using random.choices():
''.join(random.choices(string.ascii_uppercase + string.digits, k=N))
A cryptographically more secure version; see https://stackoverflow.com/a/23728630/2213647:
''.join(random.SystemRando...
How to document class attributes in Python? [closed]
...etimes overridden in specific instantiations. There's no provision in the Python language for creating docstrings for class attributes, or any sort of attributes, for that matter. What is the expected and supported way, should there be one, to document these attributes? Currently I'm doing this s...
Python - Count elements in list [duplicate]
...
@Reb.Cabin: docs.python.org/3/library/…
– Ignacio Vazquez-Abrams
Jul 21 '16 at 3:54
add a comment
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Should I use “camel case” or underscores in python? [duplicate]
...
for everything related to Python's style guide: i'd recommend you read PEP8.
To answer your question:
Function names should be lowercase, with words separated by
underscores as necessary to improve readability.
...
putting current class as return type annotation [duplicate]
In python 3 I can make arguments and return type annotations. Example:
2 Answers
2
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print memory address of Python variable [duplicate]
How do I print the memory address of a variable in Python 2.7?
I know id() returns the 'id' of a variable or object, but this doesn't return the expected 0x3357e182 style I was expecting to see for a memory address.
I want to do something like print &x , where x is a C++ int variable for exam...
What is the proper way to format a multi-line dict in Python?
In Python, I want to write a multi-line dict in my code. There are a couple of ways one could format it. Here are a few that I could think of:
...
How to upload a file in Django? [closed]
...;
8. Initialize
Just run syncdb and runserver.
> cd myproject
> python manage.py syncdb
> python manage.py runserver
Results
Finally, everything is ready. On default Django developement environment the list of uploaded documents can be seen at localhost:8000/list/. Today the files a...