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Convert a Python list with strings all to lowercase or uppercase
I have a python list variable that contains strings. Is there a python function that can convert all the strings in one pass to lowercase and vice versa, uppercase?
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Providing a default value for an Optional in Swift?
...as coalescing operator (??) that allows that. For example, for an optional String myOptional you could write:
result = myOptional ?? "n/a"
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Send file using POST from a Python script
...om os.path import abspath, isabs, isdir, isfile, join
import random
import string
import sys
import mimetypes
import urllib2
import httplib
import time
import re
def random_string (length):
return ''.join (random.choice (string.letters) for ii in range (length + 1))
def encode_multipart_data (...
File being used by another process after using File.Create()
...le is already open. You don't really need the file.Create method at all:
string filePath = @"c:\somefilename.txt";
using (StreamWriter sw = new StreamWriter(filePath, true))
{
//write to the file
}
The boolean in the StreamWriter constructor will cause the contents to be appended if the file...
Is storing a delimited list in a database column really that bad?
...t fetching the whole list.
Can't store a list longer than what fits in the string column.
Hard to search for all entities with a given value in the list; you have to use an inefficient table-scan. May have to resort to regular expressions, for example in MySQL:
idlist REGEXP '[[:<:]]2[[:>:]]'*...
When do you use varargs in Java?
...eeds to deal with an indeterminate number of objects. One good example is String.format. The format string can accept any number of parameters, so you need a mechanism to pass in any number of objects.
String.format("This is an integer: %d", myInt);
String.format("This is an integer: %d and a str...
Submit HTML form on self page
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Not so awesome. This would remove all query strings of the current URL if it has them.
– OMA
Aug 30 '19 at 17:13
2
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Unit testing void methods?
...actually split it into two methods that can now be independently tested.
string[] ExamineLogFileForX( string sFileName );
void InsertStringsIntoDatabase( string[] );
String[] can be easily verified by providing the first method with a dummy file and expected strings. The second one is slightly t...
pass **kwargs argument to another function with **kwargs
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# this yields the same error as any other positional argument
foo(3)
foo("string")
Here you can see how unpacking a dictionary works, and why sending an actual dictionary fails
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Can multiple different HTML elements have the same ID if they're different elements?
Can multiple HTML elements have the same ID if they're of different element types? Is a scenario like this valid? Eg:
16 An...