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sys.argv[1] meaning in script
...more tutorial level.
For every invocation of Python, sys.argv is automatically a list of strings representing the arguments (as separated by spaces) on the command-line. The name comes from the C programming convention in which argv and argc represent the command line arguments.
You'll want to lea...
Getting All Variables In Scope
Is there a way to get all variables that are currently in scope in javascript?
10 Answers
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How to find all the subclasses of a class given its name?
I need a working approach of getting all classes that are inherited from a base class in Python.
10 Answers
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What does the slash mean in help() output?
...python functions.
Also see the Argument Clinic documentation:
To mark all parameters as positional-only in Argument Clinic, add a / on a line by itself after the last parameter, indented the same as the parameter lines.
and the (very recent addition to) the Python FAQ:
A slash in the argu...
Counting array elements in Python [duplicate]
... in an array, because contrary to logic array.count(string) does not count all the elements in the array, it just searches for the number of occurrences of string.
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Reading a huge .csv file
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You are reading all rows into a list, then processing that list. Don't do that.
Process your rows as you produce them. If you need to filter the data first, use a generator function:
import csv
def getstuff(filename, criterion):
with ...
Datetime equal or greater than today in MySQL
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SELECT * FROM myTable WHERE DATE(myDate) = DATE(NOW())
Read more:
http://www.tomjepson.co.uk/tutorials/36/mysql-select-where-date-today.html
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What __init__ and self do on Python?
...to declare it explicitly. When you create an instance of the A class and call its methods, it will be passed automatically, as in ...
a = A() # We do not pass any argument to the __init__ method
a.method_a('Sailor!') # We only pass a single argument
The __init__ method is roughly w...
Remove Application Insight from application on Visual Studio 2013
...d only have to remove one extension and possibly one nuget package.
Uninstall the Application Insights Tools for Visual Studio extension and remove the Application Telemetry SDK for Services nuget package. The telemetry package is installed along with Application Insights but must be removed separa...
Get the generated SQL statement from a SqlCommand object?
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Made some minor adjustments and added table value parameters. It's all up on GitHub and a .Net Standard 2.0 Nuget package github.com/jphellemons/CommandAsSql Thank you Flapper! Can I add you as collaborator?
– JP Hellemons
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