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Why is “import *” bad?
...it puts a lot of stuff into your namespace (might shadow some other object from previous import and you won't know about it).
Because you don't know exactly what is imported and can't easily find from which module a certain thing was imported (readability).
Because you can't use cool tools like py...
Convert Django Model object to dict with all of the fields intact
...misnamed, and it has two unwanted extra things in it.
2. model_to_dict
from django.forms.models import model_to_dict
model_to_dict(instance)
which returns
{'foreign_key': 2,
'id': 1,
'many_to_many': [<OtherModel: OtherModel object>],
'normal_value': 1}
This is the only one with man...
Converting datetime.date to UTC timestamp in Python
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If d = date(2011, 1, 1) is in UTC:
>>> from datetime import datetime, date
>>> import calendar
>>> timestamp1 = calendar.timegm(d.timetuple())
>>> datetime.utcfromtimestamp(timestamp1)
datetime.datetime(2011, 1, 1, 0, 0)
If d is in loc...
How to remove files from git staging area?
...k added too many files to the staging area. How can I delete all the files from the staging area?
14 Answers
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Generate Java class from JSON?
In a Java Maven project, how do you generate java source files from JSON? For example we have
13 Answers
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How to step through Python code to help debug issues?
...ep is to make the Python interpreter to enter into the debugging mode.
A. From the Command Line
Most straight forward way, running from command line, of python interpreter
$ python -m pdb scriptName.py
> .../pdb_script.py(7)<module>()
-> """
(Pdb)
B. Within the Interpreter
While de...
Why have header files and .cpp files? [closed]
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Well, the main reason would be for separating the interface from the implementation. The header declares "what" a class (or whatever is being implemented) will do, while the cpp file defines "how" it will perform those features.
This reduces dependencies so that code that uses the h...
Returning 'IList' vs 'ICollection' vs 'Collection'
I am confused about which collection type that I should return from my public API methods and properties.
6 Answers
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How to re import an updated package while in Python Interpreter? [duplicate]
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Update for Python3: (quoted from the already-answered answer, since the last edit/comment here suggested a deprecated method)
In Python 3, reload was moved to the imp module. In 3.4, imp was deprecated in favor of importlib, and reload was added to ...
In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?
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It doesn't seem to work very well though (at least from ISE) unless you run .\MyFunctions.ps1 first to make it available. I'm not sure about running strictly from powershell.exe.
– Mike Cheel
Jul 11 '13 at 15:28
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