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Python way of printing: with 'format' or percent form? [duplicate]
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Use the format method, especially if you're concerned about Python 3 and the future. From the documentation:
The formatting operations described here are modelled on C's printf()
syntax. They only support formatting of certain builtin types. The
use of a binary operator means ...
NSInvalidUnarchiveOperationException: Could not instantiate class named NSLayoutConstraint
...for the iPhone project "HelloWorld". I ran it in the iPhone 5.0 simulator and it crashed:
4 Answers
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Extracting double-digit months and days from a Python date [duplicate]
Is there a way to extract month and day using isoformats? Lets assume today's date is March 8, 2013.
2 Answers
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Angularjs code/naming conventions [closed]
...you are a beginner, it is better you first go through some basic tutorials and after that learn about naming conventions. I have gone through the following to learn Angular, some of which are very effective.
Tutorials :
http://www.toptal.com/angular-js/a-step-by-step-guide-to-your-first-angularjs...
When should you not use virtual destructors?
... is not a good answer. "There is no need" is different from "should not", and "no intention" is different from "made impossible".
– Windows programmer
Nov 19 '08 at 4:59
5
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How do you properly determine the current script directory in Python?
...at if you would be able to define a "known location" that is multiplatform and that also comes with the module. I'm ready to bet that the only safe location is the script location. Note, this doesn't meat that the script should write to this location, but for reading data it is safe.
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jQuery: serialize() form and other parameters
...t possible to send form elements (serialized with .serialize() method) and other parameters with a single AJAX request?
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How to dump a dict to a json file?
...ay to do it.
In the second line of code the file result.json gets created and opened as the variable fp.
In the third line your dict sample gets written into the result.json!
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Check if Python Package is installed
... a python script, just do something like this:
Python 3.3+ use sys.modules and find_spec:
import importlib.util
import sys
# For illustrative purposes.
name = 'itertools'
if name in sys.modules:
print(f"{name!r} already in sys.modules")
elif (spec := importlib.util.find_spec(name)) is not None...
Is it possible to specify condition in Count()?
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what if my field is integer and I want to match null. it doesn't work this way select count(case IntegerField when 'NULL' then 1 else null end) from
– Faizan
Aug 31 '16 at 10:16
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