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Why is it slower to iterate over a small string than a small list?
...y_UCS4 ch;
PyObject *res;
if (!PyUnicode_Check(self) || PyUnicode_READY(self) == -1) {
PyErr_BadArgument();
return NULL;
}
if (index < 0 || index >= PyUnicode_GET_LENGTH(self)) {
PyErr_SetString(PyExc_IndexError, "string index out of range");
re...
Use PPK file in Mac Terminal to connect to remote connection over SSH [closed]
...ght security settings otherwise SSH complains. Make sure only the user can read the key.
chmod go-rw privatekey.pem
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Ternary operation in CoffeeScript
... statements without an else clause:
if sunny
go_outside()
else
read_a_book().
if sunny then go_outside() else read_a_book()
Both become ternaries, both can be used as expressions. It's consistent, and there's no new syntax to learn. So, thanks for the suggestion, but I'm closing t...
How to request Administrator access inside a batch file
...AYEDEXPANSION & set "_FilePath=%~1"
if NOT EXIST "!_FilePath!" (echo/Read RequestAdminElevation usage information)
:: UAC.ShellExecute only works with 8.3 filename, so use %~s1
set "_FN=_%~ns1" & echo/%TEMP%| findstr /C:"(" >nul && (echo/ERROR: %%TEMP%% path can not contain ...
API Keys vs HTTP Authentication vs OAuth in a RESTful API
...ty against a set of defined rules to authorizing the level of access (i.e. read, write or read/write). Once the said steps are accomplished, a typical further concern is the allowed rate of request, meaning how many requests per second the requestor is allowed to perform towards the given resource(s...
Should MySQL have its timezone set to UTC?
..., unless you specifically set the column to allow null when you
create it.
Read this
To select a timestamp column in UTC format
no matter what timezone the current MySQL session is in:
SELECT
CONVERT_TZ(`timestamp_field`, @@session.time_zone, '+00:00') AS `utc_datetime`
FROM `table_name`
You...
Why does pylint object to single character variable names?
...t will be descriptive. I'm currently using with open(FILE) as f: items = f.readlines() for example, where the variable f is really obvious, but I get pylint warnings. This made me change to flake8.
– Axel Örn Sigurðsson
Aug 20 '14 at 14:05
...
Python csv string to array
...d,e,f
gęś,zółty,wąż,idzie,wąską,dróżką,
"""
f = StringIO(scsv)
reader = csv.reader(f, delimiter=',')
for row in reader:
print('\t'.join(row))
simpler version with split() on newlines:
reader = csv.reader(scsv.split('\n'), delimiter=',')
for row in reader:
print('\t'.join(row))...
How can I make one python file run another? [duplicate]
...oid where possible.
execfile('file.py') in Python 2
exec(open('file.py').read()) in Python 3
Spawn a shell process: os.system('python file.py'). Use when desperate.
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A semantics for Bash scripts?
...:-2}" Hello World
+ echo Hello World
Hello World
For more on expansions, read the Parameter Expansion section of the manual. It's quite powerful.
Integers and arithmetic expressions
You can imbue names with the integer attribute to tell the shell to treat the right hand side of assignment expres...