Programming/Development: Perl, Python/Django and Bash
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Springtime in Switzerland
During the same week I’ll also be giving a half-day seminar on Raku, which has been generously sponsored by EPFL and so will cost nothing to attend. It’s suitable for anyone who would like a quick but comprehensive overview of this remarkable new programming language.
Besides making the Raku seminar entirely free, SIB/UNIL/EPFL have done an amazing job
keeping the prices of the other classes extremely competitive...especially if you can claim a plausible association to any academic institution, either as a student or staff member.If you’re looking for some training that’s economical, practical, and just plain fun,
in a location that’s central, civilised, and simply breathtaking, then this week
in Switzerland might fit just the bill. -
PyCoder’s Weekly: Issue #404 (Jan. 21, 2020)
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Basic Data Types in Python
In this step-by-step course, you’ll dig into the basic data types that are built into Python.
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Python 3.7.5 : Django security issues - part 002.
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Python 3.7.5 : Use Django Formsets.
Django Formsets manage the complexity of multiple copies of a form in a view.
This simplifies the task of creating a formset for a form that handles multiple instances of a model. -
Hunting gremlins
In the UTF-8 files I audit, the only invisible characters I expect to see... er... not see... are whitespace (hexadecimal 20), horizontal tab (09) and newline (linefeed; 0a). All others I call "gremlins". They include carriage return (0d), no-break space (c2 a0), soft hyphen (c2 ad) and another 62 control characters.
Gremlins are a nuisance. One gremlin causes a shell to hang. Less evil gremlins lurk inside apparently OK strings and cause the strings to be processed weirdly. In the file "demo1", two of the strings contain no-break spaces (in different places), two contain soft hyphens (in different places) and three have no gremlins.
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A more expressive Bash prompt
Bash provides some interesting built-in specifiers for the prompt strings PS1.
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