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How to continue a task when Fabric receives an error
...s like you can exercise fine-grained control over where errors are ignored by using the settings context manager, something like so:
from fabric.api import settings
sudo('mkdir tmp') # can't fail
with settings(warn_only=True):
sudo('touch tmp/test') # can fail
sudo('rm tmp') # can't fail
...
Reload Flask app when template file changes
By default, when running Flask application using the built-in server ( Flask.run ), it monitors its Python files and automatically reloads the app if its code changes:
...
How to convert an Int to a String of a given length with leading zeros to align?
...ocale.US, 123)
res6: String = 0000123
Edit post Scala 2.10: as suggested by fommil, from 2.10 on, there is also a formatting string interpolator (does not support localisation):
val expr = 123
f"$expr%07d"
f"${expr}%07d"
Edit Apr 2019:
If you want leading spaces, and not zero, just leave out ...
git diff renamed file
...ex ce01362..dd7e1c6 100644
--- a/a.txt
+++ b/a.txt
@@ -1 +1 @@
-hello
+goodbye
diff --git a/a.txt b/test/a.txt
similarity index 100%
copy from a.txt
copy to test/a.txt
Incidentally, if you restrict your diff to just one path (as you do in git diff HEAD^^ HEAD a.txt you aren't ever going to see the...
How to use range-based for() loop with std::map?
...key_type, value_type >.
So for printing you can do access each element by abc.first and abc.second
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Styling text input caret
...
If you are using a webkit browser you can change the color of the caret by following the next CSS snippet. I'm not sure if It's possible to change the format with CSS.
input,
textarea {
font-size: 24px;
padding: 10px;
color: red;
text-shadow: 0px 0px 0px #000;
-webkit-tex...
image processing to improve tesseract OCR accuracy
...e noticed that text that is highly pixellated - for example that generated by fax machines - is especially difficult for tesseract to process - presumably all those jagged edges to the characters confound the shape-recognition algorithms.
...
Using OR in SQLAlchemy
...
@intgr The example showed by robru is still efficient, if you want to use another operator instead of in_, for example the LIKE operator.
– Lhassan Baazzi
Jul 12 '17 at 1:41
...
Swift alert view with OK and Cancel: which button tapped?
...
You can easily do this by using UIAlertController
let alertController = UIAlertController(
title: "Your title", message: "Your message", preferredStyle: .alert)
let defaultAction = UIAlertAction(
title: "Close Alert", style: .defaul...
Python Process Pool non-daemonic?
...mport multiprocessing
# We must import this explicitly, it is not imported by the top-level
# multiprocessing module.
import multiprocessing.pool
import time
from random import randint
class NoDaemonProcess(multiprocessing.Process):
# make 'daemon' attribute always return False
def _get_d...