Python Notes

FILES_FOLDERS, IO, JSON, TIME, GUI, Data Structures, Strings, Dirs & Files, Admin, os, sys, Control Flow, Introspection, Main Templates, Class Templates, Modules, Parsing

#FILES_FOLDERS - os_walk_filter_dirpaths

# -*- coding: utf-8 -*-
r"""
ref: C:\1d\PythonPjs\pyUtilPj\src\os_walk\listPYfiles2.py
google: python os.walk recursive  |  Python os walk recursive depth  | python os walk
  1. [TRAVERSING DIRECTORIES RECURSIVELY](https://www.bogotobogo.com/python/python_traversing_directory_tree_recursively_os_walk.php)
  2. [Manipulating Python os.walk Recursion](https://www.ostricher.com/2014/12/manipulating-python-os-walk-recursion/)
  3. [python - Do I understand os.walk right?](https://stackoverflow.com/questions/10989005/do-i-understand-os-walk-right)
"""
import sys, os

EXCLUDED_STARTSWITH_DIRPATH_LIST =  [r'C:\1d\PythonPjs\pyUtilPj\src\prettyprint_stringlist_n_upPj', r'C:\1d\PythonPjs\pyUtilPj\src\test\in']

TOP_DIR_PATH = r'C:\1d\PythonPjs\pyUtilPj\src'
TOP_DOWN = True  
count = 0; stopcount = 500;
for dirpath, dirnames, filenames in os.walk(TOP_DIR_PATH, topdown=TOP_DOWN):
    
    # filter out dirpaths
    if any(itm in dirpath for itm in ['.git', 'node_modules']): continue
    if any(dirpath.startswith(itm) for itm in EXCLUDED_STARTSWITH_DIRPATH_LIST): continue

    
    print('dirpath: %s\n  dirnames: %s\n  filenames%s\n\n'%(dirpath, dirnames, filenames))


    count += 1; 
    if count > stopcount: break

#FILES_FOLDERS - os_walk_simple

# -*- coding: utf-8 -*-
r"""
ref: C:\1d\PythonPjs\pyUtilPj\src\os_walk\listPYfiles2.py
google: python os.walk recursive  |  Python os walk recursive depth  | python os walk
  1. [TRAVERSING DIRECTORIES RECURSIVELY](https://www.bogotobogo.com/python/python_traversing_directory_tree_recursively_os_walk.php)
  2. [Manipulating Python os.walk Recursion](https://www.ostricher.com/2014/12/manipulating-python-os-walk-recursion/)
  3. [python - Do I understand os.walk right?](https://stackoverflow.com/questions/10989005/do-i-understand-os-walk-right)
"""
import sys, os

TOP_DIR_PATH = r'C:\1d\PythonPjs\pyUtilPj\src'
TOP_DOWN = True  

count = 0; stopcount = 20;
for dirpath, dirnames, filenames in os.walk(TOP_DIR_PATH, topdown=TOP_DOWN):
    print('dirpath: %s\n  dirnames: %s\n  filenames%s\n\n'%(dirpath, dirnames, filenames))
    count += 1; 
    if count > stopcount: break

#GUI - tk_simple_dialog

# -*- coding: utf-8 -*-
r""" tkAskString.py uses TK to ask the user for a string & prints it out
Usage:   ./tkAskString.py 
Sample:  ./tkAskString.py 
see: 
  1. ["Example 2" - Python tkinter.simpledialog.askstring() Examples](https://www.programcreek.com/python/example/100669/tkinter.simpledialog.askstring)
  2. [How do I get rid of Python Tkinter root window?](https://stackoverflow.com/questions/1406145/how-do-i-get-rid-of-python-tkinter-root-window)
  3. [Tkinter Dialogs (Python3.10)](https://docs.python.org/3/library/dialog.html)
  4. google: tkinter simpledialog set width   |   tkinter simpledialog keyword arguments  
  5. ["add extra tabs at the end of your prompt"](https://stackoverflow.com/a/69396488/601770)
"""
import tkinter as tk
from tkinter import simpledialog
# root = tk.Tk()
  
def main():
    root = tk.Tk()
    root.withdraw()
    uname = simpledialog.askstring("My Title", "Enter username:\t\t\t") # Tabs make it wide as i want
      
    print(uname)
    return uname
  
if __name__ == "__main__":
    main()

#IO - ReadFileToList1Liner

f = open(r'mytest.txt', 'r', encoding="utf-8"); l = f.read().splitlines(); f.close()

#IO - ReadFileToString1Liner

f = open(r'mytest.txt', 'r', encoding="utf-8"); s = f.read(); f.close()

#JSON - JSONtoPythonObj

import json
f = open(r'mytest.json', 'r', encoding="utf-8"); jsonstr = f.read(); f.close()
my_python_obj = json.loads(jsonstr) 
print(my_python_obj)

#JSON - PythonObjToJSON

import json
my_python_obj = {"first_name": "Guido", "last_name":"Rossum"}
my_python_obj_json_str = json.dumps(my_python_obj) 
f = open('my_python_obj.json', 'w', encoding="utf-8"); f.write(my_python_obj_json_str); f.close()

#TIME - TimeStampsDuration

import datetime

dt_begin = datetime.datetime.now()
# DO YOUR STUFF IN HERE
dt_end = datetime.datetime.now()
 
print( "End Timestamp: %s"%(str(dt_end).replace(':', '.').replace(' ', '_'))     )
print( "Begin Timestamp: %s"%(str(dt_begin).replace(':', '.').replace(' ', '_')) )
print( " (End - Begin): %s"%(dt_end - dt_begin))

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