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How to serialize SqlAlchemy result to JSON?
... metatoaster
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answered May 19 '12 at 10:05
Sasha BSasha B
1,46811 gold ba...
Relative imports in Python 3
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edited Jun 7 '13 at 13:46
answered Jun 7 '13 at 13:14
Ay...
What does “hashable” mean in Python?
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answered Jan 26 '13 at 9:49
NPENPE
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Why is Python running my module when I import it, and how do I stop it?
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54
Due to the way Python works, it is necessary for it to run your modules when it imports them.
T...
Why is early return slower than else?
...wer than with_else():
>>> T(lambda : without_else()).repeat()
[0.42015745017874906, 0.3188967452567226, 0.31984281521812363]
>>> T(lambda : with_else()).repeat()
[0.36009842032996175, 0.28962249392031936, 0.2927151355828528]
>>> T(lambda : without_else(True)).repeat()
[0....
How do I find where an exception was thrown in C++?
...backtrace returned 10 frames
[bt]: (0) ./test(my_terminate__Fv+0x1a) [0x8048e52]
[bt]: (1) /usr/lib/libstdc++-libc6.2-2.so.3 [0x40045baa]
[bt]: (2) /usr/lib/libstdc++-libc6.2-2.so.3 [0x400468e5]
[bt]: (3) /usr/lib/libstdc++-libc6.2-2.so.3(__rethrow+0xaf) [0x40046bdf]
[bt]: (4) ./test(throw_exceptio...
How do you run your own code alongside Tkinter's event loop?
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145
Use the after method on the Tk object:
from tkinter import *
root = Tk()
def task():
pri...
我的钢琴 · App Inventor 2 中文网
...黑键比白键短，所以可以把升音按钮的高度调矮一些。 40% 是个不错的起点，你也可以多试几个值看哪个顺眼。
试一试
连上 AI伴侣看看效果。是不是比一排一模一样的按钮像钢琴多了？
顶端对齐之后，矮一截的黑键会正好...
Relative paths in Python
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348
In the file that has the script, you want to do something like this:
import os
dirname = os.pa...