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Most pythonic way to delete a file which may not exist
...nk (docs here)
from pathlib import Path
my_file = Path("./dir1/dir2/file.txt")
# Python 3.8+
my_file.unlink(missing_ok=True)
# Python 3.7 and earlier
if my_file.exists():
my_file.unlink()
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Can you add new statements to Python's syntax?
...logged to file"
would be equivalent to
print >>open('/tmp/logfile.txt','a'), "This gets logged to file"
There are various options as to how to do the replacing, from regex substitution to generating an AST, to writing your own parser depending on how close your syntax matches existing pyt...
Selecting empty text input using jQuery
...
For me: if($('[id^=txt]').filter(function() { return $(this).val() == ""; }).length > 0) { alert('WARNING'); }
– Cros
Aug 19 '09 at 12:10
...
Best TCP port number range for internal applications [closed]
...iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt look for the token Unassigned.
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YAML mime type?
...have both text/x-yaml and application/x-yaml... rfc-editor.org/rfc/rfc3023.txt
– Vinko Vrsalovic
Dec 1 '08 at 20:56
Fo...
How to recursively find the latest modified file in a directory?
...-n | tail -n1
Result looks like this:
2015-10-06 11:30: +0200 ./foo/bar.txt
To show more files, replace -n1 with a higher number
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How can I check if a file exists in Perl?
...perl -w
$fileToLocate = '/whatever/path/for/file/you/are/searching/MyFile.txt';
if (-e $fileToLocate) {
print "File is present";
}
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How to list all installed packages and their versions in Python?
... alias for pip freeze. Its intuitive to write pip freeze > requirements.txt, but not pip freeze.
– jsalonen
Oct 17 '12 at 17:56
3
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How can I create download link in HTML?
...sponse header:
Content-Disposition: attachment; filename=ProposedFileName.txt;
This was the way to do before HTML5 (and still works with browsers supporting HTML5).
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Import multiple csv files into pandas and concatenate into one DataFrame
... on many different directories containing different file types (csv, json, txt, databases) as if it was one data source. There must be something similar in python, since it has had a 20 year jump start on doing "big data".
– Hexatonic
Dec 28 '15 at 4:22
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