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How to initialize a dict with keys from a list and empty value in Python?
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This is the cleanest, most Pythonic way in Python3 IMO
– Bede Constantinides
Apr 21 '15 at 9:33
5
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Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
A Python MD5 hash is different than the one created by the md5sum command on the shell. Why?
1 Answer
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Android: why is there no maxHeight for a View?
...very clean solution. Makes me wonder why they didn't implement it into the xml.
– Christophe Smet
Jun 2 '14 at 6:03
1
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Find first element in a sequence that matches a predicate
...redicate:
next(x for x in seq if predicate(x))
Or (itertools.ifilter on Python 2):
next(filter(predicate, seq))
It raises StopIteration if there is none.
To return None if there is no such element:
next((x for x in seq if predicate(x)), None)
Or:
next(filter(predicate, seq), None)
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How to log source file name and line number in Python
Is it possible to decorate/extend the python standard logging system, so that when a logging method is invoked it also logs the file and the line number where it was invoked or maybe the method that invoked it?
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Clear variable in python
Is there a way to clear the value of a variable in python?
7 Answers
7
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Custom ImageView with drop shadow
.... I've used the following NinePatch:
along with the appropriate padding in XML:
<ImageView
android:id="@+id/image_test"
android:background="@drawable/drop_shadow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft=...
How to retrieve inserted id after inserting row in SQLite using Python?
How to retrieve inserted id after inserting row in SQLite using Python? I have table like this:
2 Answers
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Why does python use 'else' after for and while loops?
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It's a strange construct even to seasoned Python coders. When used in conjunction with for-loops it basically means "find some item in the iterable, else if none was found do ...". As in:
found_obj = None
for obj in objects:
if obj.key == search_key:
fou...
Convert base-2 binary number string to int
...y number:
>>> int('11111111', 2)
255
Here is documentation for python2, and for python3.
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