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About catching ANY exception
... = open('myfile.txt')
s = f.readline()
i = int(s.strip())
except IOError as (errno, strerror):
print "I/O error({0}): {1}".format(errno, strerror)
except ValueError:
print "Could not convert data to an integer."
except:
print "Unexpected error:", sys.exc_info()[0]
raise
...
How can you make a custom keyboard in Android?
...custom keyboard view MyKeyboard. (We will add this code soon so ignore the error for now.) The benefit of putting all of our keyboard code into a single view is that it makes it easy to reuse in another activity or app.
res/layout/activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<...
Overriding superclass property with different type in Swift
...rclass is an Objective-C class with a strong property and I was getting an error trying to override it - but it seems I missed that it translates to an "implicitly unwrapped optional" (chassis!) in Swift, so override var chassis : Chassis! fixes it.
– James
Jun...
Adding a new value to an existing ENUM Type
...ou are using db-migrate (which runs in transaction), then you might get an error: ERROR: ALTER TYPE ... ADD cannot run inside a transaction block The solution is mentioned here (by Hubbitus): stackoverflow.com/a/41696273/1161370
– Mahesh
Oct 26 '17 at 19:24
...
How to jump to a particular line in a huge text file?
...
linecache:
The linecache module allows one to get any line from a Python source file, while attempting to optimize internally, using a cache, the common case where many lines are read from a single file. This is used by the traceback module to retrieve sour...
Vim and Ctags tips and tricks [closed]
I have just installed Ctags (to help with C++ development) with my Vim (or rather gVim), and would like to find out your favorite commands, macros, shortcuts, tips that go along with it...
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Is there a (repeat-last-command) in Emacs?
...nd command.
– Drew
Jan 26 '14 at 23:05
You can also use C-x M-: as part of a keyboard macro, which can be handy. The ...
In Flux architecture, how do you manage Store lifecycle?
...local cache, retrieving data from the server, optimistic rendering and XHR error states, but this is the general idea.
If a particular pseudo-page does not need all the Stores in the application, I'm not entirely sure there is any reason to destroy the unused ones, other than memory constraints. B...
How to reset db in Django? I get a command 'reset' not found error
...individual apps like manage.py reset <appname> did. It results in an error: CommandError: Command doesn't accept any arguments
– Andre
May 6 '13 at 19:20
5
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What are the most-used vim commands/keypresses?
...rouble wading through the gargantuan lists of things you can do in VIM and all of the keypresses for them. I'm tired of hearing "You can use 'I' for inserting text, or 'a' for appending text after the character, or 'A' for appending text at the end of the line, or…" I can't imagine everyone uses a...