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difference between variables inside and outside of __init__()
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That's not what python does for me. Lists/dicts/etc get shared between all instances if you don't create them in __init__().
– too much php
Oct 8 '09 at 11:43
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ValueError: invalid literal for int() with base 10: ''
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The following are totally acceptable in python:
passing a string representation of an integer into int
passing a string representation of a float into float
passing a string representation of an integer into float
passing a float into int
passing an integer into ...
Check if a string is null or empty in XSLT
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Absent of any other information, I'll assume the following XML:
<group>
<item>
<id>item 1</id>
<CategoryName>blue</CategoryName>
</item>
<item>
<id>item 2</id>
<CategoryName>...
Difference between subprocess.Popen and os.system
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If you check out the subprocess section of the Python docs, you'll notice there is an example of how to replace os.system() with subprocess.Popen():
sts = os.system("mycmd" + " myarg")
...does the same thing as...
sts = Popen("mycmd" + " myarg", shell=True).wait()
T...
log4net not working
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One gotcha for this type of thing is to make sure to add the XmlConfigurator attribute to the assembly by placing the following line in your AssemblyInfo.cs:
[assembly: log4net.Config.XmlConfigurator]
Otherwise log4net never activates.
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PHP DOMDocument errors/warnings on html5-tags
...r best workable solution is going to be to disable error reporting with libxml_use_internal_errors:
$dom = new DOMDocument;
libxml_use_internal_errors(true);
$dom->loadHTML('...');
libxml_clear_errors();
share
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Converting Mercurial folder to a Git repository
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On Linux or anything with bash/sh or similar, or python, try with fast export:
cd
git clone git://repo.or.cz/fast-export.git
git init git_repo
cd git_repo
~/fast-export/hg-fast-export.sh -r /path/to/old/mercurial_repo
git checkout HEAD
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SharedPreferences.onSharedPreferenceChangeListener not being called consistently
...ceState) {
super.onCreate(savedInstanceState);
// load the XML preferences file
addPreferencesFromResource(R.xml.preferences);
}
}
Every time the menu button is pressed I create the PreferenceActivity from the main Activity:
@Override
public boolean onPrepareOptionsMen...
Inspecting standard container (std::map) contents with gdb
... of date. With a recent GCC and GDB it Just WorksTM thanks to the built-in Python support in GDB 7.x and the libstdc++ pretty printers that come with GCC.
For the OP's example I get:
(gdb) print m
$1 = std::map with 2 elements = {[1] = 2, [2] = 4}
If it doesn't work automatically for you see the...
Using logging in multiple modules
I have a small python project that has the following structure -
11 Answers
11
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