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How do I save and restore multiple variables in python?
...this specific to 3.4+? I almost voted the answer down because it generates errors when you don't use 'b'.
– Wilmer E. Henao
Jun 27 '16 at 20:22
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Print second last column/field in awk
I want to print the second last column or field in awk. The number of fields is variable. I know that I should be able to use $NF but not sure how it can be used.
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Liquibase lock - reasons?
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I was just getting this error in my development environment. Fixing up the DATABASECHANGELOGLOCK table solved it.
– Naymesh Mistry
Jul 28 '16 at 18:38
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How do I replace whitespaces with underscore?
... do I need to import anything for this to work? I get the following error: AttributeError: 'builtin_function_or_method' object has no attribute 'replace'
– Ocasta Eshu
Oct 31 '12 at 2:23
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When should I use perror(“…”) and fprintf(stderr, “…”)?
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understanding the difference between - or better, when I should use - perror("...") or fprintf(stderr, "...") .
5 Ans...
JSON serialization of Google App Engine models
... output[key] = to_dict(value)
else:
raise ValueError('cannot encode ' + repr(prop))
return output
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Start / Stop a Windows Service from a non-Administrator user account
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whoops! Failed... I got "Error OpenSCManager : The RPC server is unavailable. WARNING : /grant=mike=f : No previous object opened". The service I tried was MySQL. Reboot: access is denied, as ever.
– mike rodent
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How to find keys of a hash?
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edited Mar 6 '19 at 15:05
Jost
18122 silver badges1515 bronze badges
answered Aug 3 '11 at 3:02
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Validating IPv4 addresses with regexp
...considered a valid IP? It also gets matched by this regex. But ping throws error message like ping: cannot resolve 09.09.09.09: Unknown host. I think it might be wise to reduce the matching to dot-decimal notation matching only. This entry discusses on leading errors in IP addresses.
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(HTML) Download a PDF file instead of opening them in browser when clicked
...gree totally!
– DA.
Apr 3 '18 at 16:05
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