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Setting the correct encoding when piping stdout in Python
When piping the output of a Python program, the Python interpreter gets confused about encoding and sets it to None. This means a program like this:
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How do I raise the same Exception with a custom message in Python?
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Update: For Python 3, check Ben's answer
To attach a message to the current exception and re-raise it:
(the outer try/except is just to show the effect)
For python 2.x where x>=6:
try:
try:
raise ValueError # something...
How to redirect output with subprocess in Python?
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UPDATE: os.system is discouraged, albeit still available in Python 3.
Use os.system:
os.system(my_cmd)
If you really want to use subprocess, here's the solution (mostly lifted from the documentation for subprocess):
p = subprocess.Popen(my_cmd, shell=True)
os.waitpid(p.pid, 0)
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How to delete items from a dictionary while iterating over it?
Is it legitimate to delete items from a dictionary in Python while iterating over it?
10 Answers
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How to use filter, map, and reduce in Python 3
filter , map , and reduce work perfectly in Python 2. Here is an example:
7 Answers
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How do you dynamically add elements to a ListView on Android?
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Create an XML layout first in your project's res/layout/main.xml folder:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
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How to fix Error: “Could not find schema information for the attribute/element” by creating schema
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In Visual Studio, open your app.config or web.config file.
Go to the "XML" menu and select "Create Schema". This action should create a new file called "app.xsd" or "web.xsd".
Save that file to your disk.
Go back to your app.config or web.config and in the edit window, right click and select pr...
Concatenating string and integer in python
In python say you have
7 Answers
7
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How to document thrown exceptions in c#/.net
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You should use the standard xml documentation.
/// <exception cref="InvalidOperationException">Why it's thrown.</exception>
/// <exception cref="FileNotFoundException">Why it's thrown.</exception>
/// <exception cref="DivideB...
Is Python interpreted, or compiled, or both?
... there are C interpreters and projects that attempt to compile a subset of Python to C or C++ code (and subsequently to machine code).
Second, compilation is not restricted to ahead-of-time compilation to native machine code. A compiler is, more generally, a program that converts a program in one p...