Python - Transpose a list using zip, yet transform the result to a list of lists, not a list of tuples

map(list, zip(*list_to_transpose))

Python - Distinct list, preserving original elements order

from collections import OrderedDict
from itertools import izip, repeat

original_list = ['a', 'b', 'b', 'c']
unique_list = list(OrderedDict(izip(original_list, repeat(None))))
print unique_list

Credit to: https://stackoverflow.com/questions/479897/how-to-remove-duplicates-from-python-list-and-keep-order

Meteor - Determine the version of your meteor instance/project

Navigate to your project root folder using Terminal.

$ cat .meteor/release

METEOR@1.8.0.2

Python - Get the path of the grandparent directory of the current script

from os import path

print path.dirname(
            path.dirname(
                path.abspath(__file__)
            )
        )

Python - Get the path of the directory that holds the current script (not including the current script file name)

from os import path


print path.dirname(
            path.abspath(__file__)
        )

Python - Retrieve the absolute path of the current script, including its name

from os import path

print path.abspath(__file__)

Python - Inserting a column to an existing list of lists (fixed value or numerical count/index)

# 1. Original matrixmatrix = [
        [1, 'a', 'the letter a']
        , [2, 'b', 'the letter b']
    ]

# 2. Inserting the same fixed valuematrix = [
        x + ['new fixed value']
        for x in matrix
    ]

# 3. Insert a consecutive numeric valuematrix = [
        pair[1] + [pair[0]]
        for pair
        in enumerate(matrix)
    ]

Python - Flatten list of lists using list comprehension

flat = [
y
for x in list_of_lists 
for y in x
]


Credits: https://coderwall.com/p/rcmaea/flatten-a-list-of-lists-in-one-line-in-python

Windows - How to delete all browser caches

@echo off

taskkill /f /im iexplore.exe

erase "%TEMP%\*.*" /f /s /q
for /D %%i in ("%TEMP%\*") do RD /S /Q "%%i"

erase "%TMP%\*.*" /f /s /q
for /D %%i in ("%TMP%\*") do RD /S /Q "%%i"

erase "%ALLUSERSPROFILE%\TEMP\*.*" /f /s /q
for /D %%i in ("%ALLUSERSPROFILE%\TEMP\*") do RD /S /Q "%%i"

erase "%SystemRoot%\TEMP\*.*" /f /s /q
for /D %%i in ("%SystemRoot%\TEMP\*") do RD /S /Q "%%i"


@rem Clear IE cache -  (Deletes Temporary Internet Files Only)
start "" "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 255
erase "%LOCALAPPDATA%\Microsoft\Windows\Tempor~1\*.*" /f /s /q
for /D %%i in ("%LOCALAPPDATA%\Microsoft\Windows\Tempor~1\*") do RD /S /Q "%%i"

set DataDir=C:\Windows\Downloaded Program Files
del /q /s /f "%DataDir%"
rd /s /q "%DataDir%"

Python - Create a list of consecutive integer numbers

my_list = list(range(100))