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What's the best way to parse command line arguments? [closed]
...
print(args.switch)
5) Check Values
if args.pos_arg > 10:
parser.error("pos_arg cannot be larger than 10")
Usage
Correct use:
$ ./app 1 2 --opt_arg 3 --switch
Argument values:
1
2
3
True
Incorrect arguments:
$ ./app foo 2 --opt_arg 3 --switch
usage: convert [-h] [--opt_arg OPT_ARG]...
PHP mail function doesn't complete sending of e-mail
... It's difficult to diagnose these things unless there is an obvious syntax error. Without one you need to run through the checklist below to find any potential pitfalls you may be encountering.
Make sure error reporting is enabled and set to report all errors
Error reporting is essential to rootin...
Regex expressions in Java, \\s vs. \\s+
What's the difference between the following two expressions?
4 Answers
4
...
Two versions of python on linux. how to make 2.7 the default
I've got two versions of python on my linuxbox:
6 Answers
6
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Enable access control on simple HTTP server
...console.
– Rho Phi
Sep 12 '16 at 10:05
2
@RobertoFranceschini You might be running into preflight...
Fast Bitmap Blur For Android SDK
... encountered the same problem.Found out why yet? "g[yi] = dv[gsum];" -->error :java.lang.ArrayIndexOutOfBoundsException: length=112896; index=114021
– see2851
Sep 28 '14 at 4:42
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How do I get list of methods in a Python class?
...args',
<unbound method OptionParser.enable_interspersed_args>),
('error', <unbound method OptionParser.error>),
('exit', <unbound method OptionParser.exit>),
('expand_prog_name', <unbound method OptionParser.expand_prog_name>),
...
]
# python3
>>> inspect.getm...
Set the value of a variable with the result of a command in a Windows batch file
...theValue=`command`
Consider the case where the command fails, causing an error.
In the Unix shell version, the assignment to "theValue" still occurs, any previous value being replaced with an empty value.
In the Windows batch version, it's the "for" command which handles the error, and the "do" ...
How to do what head, tail, more, less, sed do in Powershell? [closed]
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$Push_Pop = $ErrorActionPreference #Suppresses errors
$ErrorActionPreference = “SilentlyContinue” #Suppresses errors
#Script
#gc .\output\*.csv -ReadCount 5 | %{$_;throw "pipeline end!"} # head
#gc .\output\*.csv | %{$num=0;}{...
Replace input type=file by an image
...ill increase the size of the "browse" button. It then takes some trial and error using the negative left / top properties to position the input browse button behind your label.
When positioning the button, set the alpha to 1. When you've finished set it back to 0 (so you can see what you're doing!)...