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Nullable Foreign Key bad practice?
...red Nov 12 '09 at 17:14
Patrik HägnePatrik Hägne
15k33 gold badges4848 silver badges5858 bronze badges
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What's the best practice using a settings file in Python? [closed]
...
You can have a regular Python module, say config.py, like this:
truck = dict(
color = 'blue',
brand = 'ford',
)
city = 'new york'
cabriolet = dict(
color = 'black',
engine = dict(
cylinders = 8,
placement = 'mid',
...
Should all Python classes extend object?
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In Python 2, not inheriting from object will create an old-style class, which, amongst other effects, causes type to give different results:
>>> class Foo: pass
...
>>> type(Foo())
<type 'instance'>
v...
What is Common Gateway Interface (CGI)?
...ed Jan 18 '10 at 21:23
Juha SyrjäläJuha Syrjälä
30k3030 gold badges121121 silver badges171171 bronze badges
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Numpy index slice without losing dimension information
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'dimensions' are dropped when indexing Python lists, alist[0] and kept when slicing them.
– hpaulj
May 13 '18 at 23:04
4
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How to install psycopg2 with “pip” on Python?
...hes.
Option 1
Install the psycopg2-binary PyPI package instead, it has Python wheels for Linux and Mac OS.
pip install psycopg2-binary
Option 2
Install the prerequsisites for building the psycopg2 package from source:
Debian/Ubuntu
Python 3
sudo apt install libpq-dev python3-dev
You m...
The “unexpected ++” error in jslint [duplicate]
...ion; some languages (see above) assume the sanity of the programmer, some (Python, R, MATLAB) don't. It's not for me to decide which are right. Still, JavaScript ain't any more "functional" than current-day C++, C# or Java (lambdas, closures, etc.)
– user719662
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【解决】jekyll 3.8.5 | Error: invalid byte sequence in UTF-8 - Python...
原因很简单，就是某个文件中混入了非UTF8字符，请仔细检查一定能发现的，可以采用排除法，文件逐个放入测试，就能找到具体的错误格式的文件。当然，也可能是文件名中含有非预期字符导致的报错！
引用:非常感谢你的帮...
Get only part of an Array in Java?
...n array of Integers in Java, I would like use only a part of it. I know in Python you can do something like this array[index:] and it returns the array from the index. Is something like this possible in Java.
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How to use if - else structure in a batch file?
...%==0 IF %C%==1 (
::copying a directory c from d, /s: boş olanlar hariç, /e:boş olanlar dahil
xcopy "%sourceCopyDirectory%" "%destinationCopyDirectory%" /s/e
)
IF %F%==0 IF %C%==0 (
::moving a directory
xcopy /E "%sourceMoveDirectory%" "%destinationMoveDirectory%"
rd /s /...