Keywords

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$?
- - Testing demo: doctest
%ERRORLEVEL%
- - Testing demo: doctest
*
- - Variable length argument list with * and

- - Variable length argument list with * and

kwargs
- - Variable length argument list with * and **
*args
- - Variable length argument list with * and **
--check-untyped-def
- - Type in unannotated function
--strict
- - Type in unannotated function
2to3
- - Convertig from Python 2 to Python 3
@
- - Decorator
__class__
- - Getting the class name of an object
__delete__
- - Python Descriptors
__enter__
- - Context manager with class
  - Context managers with class
__exit__
- - Context manager with class
  - Context managers with class
__get__
- - Python Descriptors
__import__
- - import hooks
__init__
- - Pass parameters to threads - Counter with attributes
  - Python Descriptors
__init__.py
- - Create package
  - package importing (and exporting) module
__name__
- - type
  - Getting the class name of an object
__set__
- - Python Descriptors
abc
- - Abstract Class
acquire
- - Lock - acquire - release
  - Multitasking counter with thread locking
active
- - Create an Excel file from scratch
ADAPTIVE_THRESH_GAUSSIAN_C
- - OpenCV - Adaptive Thresholding
ADAPTIVE_THRESH_MEAN_C
- - OpenCV - Adaptive Thresholding
adaptiveThreshold
- - OpenCV - Adaptive Thresholding
add_cascade
- - Python Tk Menubar
add_command
- - Python Tk Menubar
after
- - Python Tk Timer event (after)
askopenfile
- - Python Tk Filedialog
askopenfilename
- - Simple file dialog
  - Python Tk Filedialog
asksaveasfile
- - Python Tk Filedialog
asksaveasfilename
- - Python Tk Filedialog
assert
- - Testing demo: pytest using classes
assertEqual
- - Testing demo: Unittest success
async
- - Print async
  - Async chores
asyncio
- - Print async
await
- - Print async
  - Async chores
basicConfig
- - Simple logging
BeautifulSoup
- - Beautiful Soup to parse HTML
begin
- - SQLAlchemy autocommit
bgcolor
- - Turtle screen
bilateralFilter
- - OpenCV Bilateral blur
bind
- - Python Tk Keybinding
  - Python Tk Combobox
bisect
- - Insert element in sorted list using bisect
bitwise_and
- - OpenCV - bitwise operations
bitwise_not
- - OpenCV - bitwise operations
bitwise_or
- - OpenCV - bitwise operations
bitwise_xor
- - OpenCV - bitwise operations
blur
- - OpenCV blur image
bool
- - Built-in types
BooleanVar
- - Python Tk Checkbox
bs4
- - Beautiful Soup to parse HTML
Button
cache
- - Decorators caching - with cache
calcHist
- - OpenCV - grayscale historgrams
  - OpenCV - color historgrams
canny
- - OpenCV - Canny Dilate Erode
CascadeClassifier
- - OpenCV - Face detection
CGI
- - Hello world web
chdir
- - cd in a function
Checkbox
- - Python Tk Checkbox
Checkbutton
- - Tk: Old Checkbox
circle
- - Circle
  - OpenCV - draw circle
classmethod
- - Use cases for decorators in Python
close
- - SQLAlchemy engine SELECT
closure
- - Make incrementor with def (closure)
collections
- - Counting words - which implementation is faster?
color
- - Python Tk Label - font size and color
  - Create First Image
COLOR_BGR2GRAY
- - OpenCV convert BGR to greyscale and back to BGR
COLOR_BGR2HSV
- - OpenCV - BGR to HSV
COLOR_BGR2LAB
- - OpenCV - BGR to LAB
COLOR_BGR2RGB
- - OpenCV - BGR to RGB
COLOR_GRAY2BGR
- - OpenCV convert BGR to greyscale and back to BGR
COLOR_HSV2BGR
- - OpenCV - BGR to HSV
COLOR_LAB2BGR
- - OpenCV - BGR to LAB
COLOR_RGB2BGR
- - OpenCV - BGR to RGB
colorama
- - Print in color on the CLI
column_dimensions
- - Create an Excel file from scratch
Combobox
- - Python Tk Combobox
ComboboxSelected
- - Python Tk Combobox
commit
- - SQLAlchemy autocommit
config
- - Python Tk Label - font size and color
contextlib
- - tempdir context manager
contextmanager
- - tempdir context manager
Counter
- - Counting words - which implementation is faster?
cProfile
- - cProfile slow code
cpu_count
- - Multiprocess CPU count
create_engine
- - SQLAlchemy engine
create_sheet
- - Worksheets in Excel
create_task
- - Async sleep in loop
csc
- - Use .NET libraries from Python
csv
- - Reading a CSV file
ctypes
- - ctypes - hello
  - Tk: Runner with threads
currentframe
- - Name of the current function in Python
curselection
- - Python Tk Listbox
cursor
- - GitHub GraphSQL paging using cursor
cx_Freeze
- - Packaging applications (creating executable binaries)
defaultdict
- - Counting words - which implementation is faster?
delete
- - Solution: Tk - Calculator one line
detectMultiScale
- - OpenCV - Face detection
dict
- - Built-in types
Dict
- - Complex types for Python 3.8 and before
DictReader
- - CSV to dictionary
dilate
- - OpenCV - Canny Dilate Erode
dir()
- - Getting help
discover
- - Add tests
division
- - division
do while
- - do while
doctest
- - Testing demo: doctest
easy_install
- - Install Package
END
- - Python Tk Listbox
Engine
- - SQLAlchemy engine CREATE TABLE
Entry
enumerate
- - enumerate
erode
- - OpenCV - Canny Dilate Erode
except
- - Counting words - which implementation is faster?
executable
- - Using Modules
execute
- - SQLAlchemy engine CREATE TABLE
exitonclick
- - Line
fetchone
- - SQLAlchemy engine SELECT
filedialog
FileHandler
- - getLogger
flake8
- - F811 - redefinition of unused
float
- - REPL - Read Evaluate Print Loop
  - Built-in types
font
- - Python Tk Label - font size and color
for
- - for loop or reduce to add numbers?
fork
- - Fork
  - Forking
forward
Frame
- - Python Tk Frame
  - Tk: Old Simple Tk app with class
Freeze
- - Packaging applications (creating executable binaries)
functools
- - for loop or reduce to add numbers?
gather
- - Print async
  - Async sleep in loop with gather
GaussianBlur
- - OpenCV Gaussian blur
get
- - Python Tk Listbox
getcwd
- - cd in a function
getlocale
- - get and set locale
getLogger
- - getLogger
getpid
- - Fork
getppid
- - Fork
getscreen
- - Turtle screen
getturtle
- - Line
global
- - Counter with global
goto
- - Move turtle without drawing (penup, pendown, goto)
  - Turtle house
GTK
- - GUI Toolkits
GUI
- - GUI Toolkits
help()
- - Getting help
HORIZONTAL
- - Python Tk Scale
IDLE
- - IDLE - Integrated DeveLopment Environment
Image
- - Create First Image
imap
- - Multiprocess load async
imp.reload
- - Modules: more
import
- - Using Modules
  - Getting help
imread
- - OpenCV Read image
imshow
- - OpenCV Read image
imwrite
- - OpenCV crop, resize and save image
input
- - input and raw_input
INSERT
- - SQLAlchemy engine INSERT
insert
- - Python MongoDB insert
  - Solution: Tk - Calculator one line
insert_one
- - Python MongoDB insert
insort
- - Insert element in sorted list using insort
inspect
int
- - REPL - Read Evaluate Print Loop
  - Built-in types
INTER_AREA
- - OpenCV resize (rescale) images
ipywidgets
- - IPy Widgets
iris
- - Kaggle - Iris
  - Multi-feature Classification (Iris)
iter
- - itertools - pairwise
izip
java
- - Jython Installation
jython
- - Jython Installation
kill
- - Signals and Python
  - Sending Signal
Label
Laplacian
- - OpenCV - Laplacian Gradients
LC_CTYPE
- - get and set locale
left
- - Square (forward, left)
len
- - The Python interactive shell
lint
- - Static Code Analyzis - Linters
list
- - Built-in types
List
- - Complex types for Python 3.8 and before
list_dialects
- - CSV dialects
Listbox
- - Python Tk Listbox
locale
- - get and set locale
Lock
- - Lock - acquire - release
  - Multitasking counter with thread locking
logging
- - Simple logging
  - Multiprocess and logging
lru_cache
- - Decorators caching - with cache
mainloop
- - Python Tk Label
  - Tk: Old Simple Tk app with class
map
map_async
- - Multiprocess load async
medianBlur
- - OpenCV Median blur
Menu
- - Python Tk Menubar
merge
- - OpenCV - Split and merge color channels
mkdtemp
- - tempdir context manager
MongoClient
- - Python MongoDB insert
MULTIPLE
- - Python Tk Listbox Multiple
multiprocess
multitasking
- - Multitasking example
mypy
- - mypy
nbconvert
- - Jupyter Notebook convert to other format (nbconvert)
nonlocal
- - Counter closure
nuget
- - Use .NET libraries from Python
Optional
- - Optional type (variable can also be None)
OptionMenu
- - Python Tk OptionMenu
os.remove
- - Remove file
os.stat
- - open in for loop
os.unlink
- - Remove file
pack
- - Python Tk Label
  - Python Tk Frame
partial
- - Functool - partial
pdb
- - pdb = Python Debugger
pendown
- - Move turtle without drawing (penup, pendown, goto)
penup
- - Move turtle without drawing (penup, pendown, goto)
pep8
- - PEP8
PIL
- - Install Pillow
Pillow
- - Install Pillow
pip
- - pip
  - Install Package
Pool
POST
- - requests post
print
- - print in Python 3
profile
- - profile slow code
Progreessbar
- - Python Tk Progressbar
py2app
- - Packaging applications (creating executable binaries)
py2exe
- - Packaging applications (creating executable binaries)
PyInstaller
- - Packaging applications (creating executable binaries)
pylint
- - Warn when Redefining functions
pytest
- - Testing demo: pytest using classes
  - Use cases for decorators in Python
pythonnet
- - Use .NET libraries from Python
Qt
- - GUI Toolkits
queue
- - Tk: Runner with threads
Queue
- - Create a counter queue
Radiobutton
- - Python Tk Radiobutton
range
- - range vs xrange in Python
raw_input
- - input and raw_input
reader
- - Reading a CSV file
rectangle
- - OpenCV - draw rectangle
reduce
- - for loop or reduce to add numbers?
release
- - Lock - acquire - release
  - Multitasking counter with thread locking
reload
- - Modules: more
REPL
- - REPL - Read Evaluate Print Loop
requests
resize
- - OpenCV resize (rescale) images
right
- - Turtle house
rollback
- - SQLAlchemy autocommit
Roslyn
- - Use .NET libraries from Python
run
- - Threaded counters
  - Simple threaded counters
save
- - Create an Excel file from scratch
Scale
- - Python Tk Scale
scope
- - Variable scope
SELECT
- - SQLAlchemy engine SELECT
selectmode
- - Python Tk Listbox Multiple
set
- - Built-in types
Set
- - Complex types for Python 3.8 and before
set_max_threads
- - Multitasking example
setlocale
- - get and set locale
shape
- - OpenCV resize (rescale) images
side
- - Python Tk Frame
size
- - Create First Image
Sobel
- - OpenCV - Sobel Gradients
split
stack
stat
- - open in for loop
static
- - Static variable
staticmethod
- - Use cases for decorators in Python
steps
- - Square using the circle command
str
- - Built-in types
StreamHandler
- - getLogger
StringVar
- - Python Tk OptionMenu
sys
- - Using Modules
sys.modules
- - Modules: more
task
- - Multitasking example
tempfile
- - tempdir context manager
TestCase
- - Testing demo: Unittest success
Text
- - Python Tk Text
  - Tk: Runner
Thread
threading
THRESH_BINARY
- - OpenCV - Simple Thresholding
THRESH_BINARY_INV
- - OpenCV - Simple Thresholding
threshold
- - OpenCV - Simple Thresholding
thresholding
- - OpenCV - Thresholding
time
- - Fork load results
TimedRotatingFileHandler
- - Time-based logrotation
timeit
- - Counting words - which implementation is faster?
Tk
tkinter
- - Python Tk Label
  - Tk: Old Simple Tk app with class
train_test_split
- - Split data set
try
- - Counting words - which implementation is faster?
tuple
- - Built-in types
Tuple
- - Complex types for Python 3.8 and before
type
- - type
  - Getting the class name of an object
Union
- - Either this or that type (Union)
  - Either this or that type for Python before 3.10
unittest
- - Testing demo: Unittest success
  - Add tests
unzip
- - Extract zip file
urllib
- - get HTML page using urllib
version
- - Using Modules
VERTICAL
- - Python Tk Scale
virtualenv
- - Virtualenv
wait
- - Fork
  - Forking
wait_for_tasks
- - Multitasking example with wait
waitKey
- - OpenCV Read image
warn
- - Warnings
with
- - Context manager: with for file
  - With - context managers
Workbook
- - Create an Excel file from scratch
WSGI
- - Hello world web
wxWidgets
- - GUI Toolkits
xml
- - XML Data
xml.parsers.expat
- - Expat - Callbacks
xrange
- - range vs xrange in Python
zip
- - Extract zip file
zipfile
- - Extract zip file