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How to use filter, map, and reduce in Python 3
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Since the reduce method has been removed from the built in function from Python3, don't forget to import the functools in your code. Please look at the code snippet below.
import functools
my_list = [10,15,20,25,35]
sum_numbers = functools.reduce(lambda x ,y : x+y , my_list)
print(sum_numbers)
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How to mock an import
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@LucasCimon, replace __builtin__ by builtins for python3 (docs.python.org/3/whatsnew/3.0.html?highlight=__builtin__)
– Luke Marlin
Jul 8 '19 at 8:53
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TypeError: sequence item 0: expected string, int found
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No longer an issue in Python3, str('\xeb') => ë
– Brayoni
Apr 30 at 7:18
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BLE（四）嗅探工具 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...，可以直接从github：https://github.com/greatscottgadgets/ubertooth下载到最新的发布版。
优点：
售价约120美元，比较亲民本身是一个开源的硬件和软件工程，其设计目的就是用来进行蓝牙网络的嗅探，便于研究员和黑客使用针对不同...
How to colorize diff on the command line?
...e-by-side word level diff
https://github.com/ymattw/ydiff
Is this Nirvana?
python3 -m pip install --user ydiff
diff -u a b | ydiff -s
Outcome:
If the lines are too narrow (default 80 columns), fit to screen with:
diff -u a b | ydiff -w 0 -s
Contents of the test files:
a
1
2
3
4
5 the original lin...
Python multiprocessing pool.map for multiple arguments
...le arguments?
Python 3.3 includes pool.starmap() method:
#!/usr/bin/env python3
from functools import partial
from itertools import repeat
from multiprocessing import Pool, freeze_support
def func(a, b):
return a + b
def main():
a_args = [1,2,3]
second_arg = 1
with Pool() as poo...
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al
... the two arrays to be evaluated in boolean context (by
calling __bool__ in Python3 or __nonzero__ in Python2).
Your original code
mask = ((r["dt"] >= startdate) & (r["dt"] <= enddate))
selected = r[mask]
looks correct. However, if you do want and, then instead of a and b use (a-b).any...
Detect if homebrew package is installed
...th some versioned formula like python@3 which is installed (and listed) as python3.
– Daniele Orlando
Jan 18 '18 at 19:57
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Using module 'subprocess' with timeout
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Since Python3.5, use subprocess.run() with capture_output=True and use the encoding parameter to get usefoul output.
– MKesper
May 28 at 9:33
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Python threading.timer - repeat function every 'n' seconds
... but I struggled to understand how it was designed from simply reading the Python3 threading Timer interface documentation. The answer appears to build on knowing the implementation by going into the threading.py module itself.
– Adam.at.Epsilon
Jun 15 at 8:40
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