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How to join components of a path when you are constructing a URL in Python
... doing anything for me. I would like at least join("/media", "js/foo.js") and join("/media/", "js/foo.js") to work. Thanks for what appears to be the right answer: roll your own.
– amjoconn
Nov 25 '09 at 14:42
...
Non-alphanumeric list order from os.listdir()
...y containing the following subdirectories: run01, run02, ... run19, run20, and then I generate a list from the following command:
...
Most efficient way to check for DBNull and then assign to a variable?
...ert(Of Integer)(oRow("Value")), iDefault)
oSomeObject.StringMember = If(TryCast(oRow("Name"), String), sDefault)
Function TryConvert(Of T As Structure)(ByVal obj As Object) As T?
If TypeOf obj Is T Then
Return New T?(DirectCast(obj, T))
Else
Return Nothing
End If
End Fun...
SQL query to get all values a enum can have
...ove query will be myenum. Depending on what you are doing, you may need to cast to text. e.g.
SELECT unnest(enum_range(NULL::myenum))::text
If you want to specify the column name, you can append AS my_col_name.
Credit to Justin Ohms for pointing out some additional tips, which I incorporated...
How to clear the interpreter console?
...keep a console window open with the Python interpreter running to test commands, dir() stuff, help() stuff , etc.
36 Ans...
How to get the PATH environment-variable separator in Python?
...
If, like me, you didn't read the body of this question and just went by the title, you'll think this is the character that separates elements of a filesystem path (forward slash on Linux and MacOSX, backslash on Windows). It's not, it the character that separates elements of a s...
How to create new folder? [duplicate]
...
You can create a folder with os.makedirs()
and use os.path.exists() to see if it already exists:
newpath = r'C:\Program Files\arbitrary'
if not os.path.exists(newpath):
os.makedirs(newpath)
If you're trying to make an installer: Windows Installer does a lot of...
SQL select only rows with max value on a column [duplicate]
...'s how it looks with the above example, written in SQL
SELECT id,
CAST(SUBSTRING(max(packed_col) FROM 2 FOR 6) AS float) as max_rev,
SUBSTRING(max(packed_col) FROM 11) AS content_for_max_rev
FROM (SELECT id,
CAST(1000 + rev + .001 as CHAR) || '---' || CAST(content AS char) ...
Bash script absolute path with OS X
...ction that'll do the job, but I'm not seeing anything available on the command-line. Here's a quick and dirty replacement:
#!/bin/bash
realpath() {
[[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"
}
realpath "$0"
This prints the path verbatim if it begins with a /. If not it must b...
Run a Python script from another Python script, passing in arguments [duplicate]
...another Python script. I want to pass variables like I would using the command line.
6 Answers
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