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How do I remove packages installed with Python's easy_install?
... scripts (and possibly other file categories) on the system. The egg's EGG-INFO/SOURCES.txt contains a list of all package files and sources, but not data_files, which can be installed into any arbitrary directory on your system...
– Alex Leach
Jul 1 '13 at 11:...
How do I print the type of a variable in Rust?
... @JIXiang: the Rust Language Server is all about providing this information to an IDE, but it’s not mature yet—its first alpha release was only a couple of days ago. Yes, this is an eldritch approach; yes, less esoteric ways of achieving the goal are steadily coming.
...
Python progression path - From apprentice to guru
...ions, a lot
Discover itertools and functools
Read Real World Haskell (read free online)
Rewrite all your old Python code with tons of higher order functions, recursion, and whatnot.
Annoy your cubicle mates every time they present you with a Python class. Claim it could be "better" implemented as a...
How to delete all datastore in Google App Engine?
... remote_shell_api.py yourapp /remote_api
The shell will ask for your login info, and if authorized, will make a Python shell for you. You need setup url handler for /remote_api in your app.yaml
fetch the entities you'd like to delete, the code looks something like:
from models import Entry
...
How do I check in SQLite whether a table exists?
...
Use:
PRAGMA table_info(your_table_name)
If the resulting table is empty then your_table_name doesn't exist.
Documentation:
PRAGMA schema.table_info(table-name);
This pragma returns one row for each column in the named table. Columns in the r...
Get property value from string using reflection
...null) { return null; }
Type type = obj.GetType();
PropertyInfo info = type.GetProperty(part);
if (info == null) { return null; }
obj = info.GetValue(obj, null);
}
return obj;
}
public static T GetPropValue<T>(this Object obj, String name) {
Object...
Is “IF” expensive?
...mance-critical code in C or assembly. If that is the case, writing branch-free code can often be superior to code that branches, even if several more instructions are needed. There are some cool bit-twiddling tricks you can do to compute things such as abs(), min(), and max() without branching.
...
Why aren't programs written in Assembly more often? [closed]
...nt things. If you use a good compiler, you get the fast assembler code for free.
– Niki
Apr 21 '10 at 16:25
you get fa...
What exactly are unmanaged resources?
...at you are calling Dispose on a managed object that internally handles the freeing up of the unmanaged resource it wraps (e.g. file handle, GDI+ bitmap, ...) and that if you access unmanaged resources directly (PInvoke etc.) you need to handle that.
– Ian Mercer
...
The application may be doing too much work on its main thread
...ied running different kinds of sample codes the emulator using 3 different free libraries, nothing is showing in the layout screen. The logcat is repeating the following message:
...