Py Basic Commands

A package with some basic tools and commands for Python (+3.7)

Author

• @RasseTheBoy

Installation

Install using pip

  pip install py_basic_tools

  pip3 install py_baisc_tools

Table of input variables

Variable	Usage	Type
text	The text to be printed	str
nl	Whether to print a newline or not	bool
flush	Whether to flush the output print or not	bool
do_print	Whether to print the text or not	bool
use_end_addon	Whether or not to add a colon to the end of the text	bool
file_path	The path of the file to be read	str
create	If True, the file/directory will be created if it does not exist	bool
force	If True, the file/directory will be created even if it exists	bool
remove_empty	If True, empty lines will be removed from list	bool
do	Action for directory or file	'dir'/'file'
ret_type	Variable type to return	type
ret_var	Variable to return	str

Examples

Links to functions

• fprint()
• finput()
• enter_to_continue()
• choose_from_list()
• read_file()
• create_file_dir()
• remove_file_dir()
• get_dir_path_for_file()
• join_path()
• try_traceback()
• func_timer()

fprint()

• Customizable input function

>>> fprint('Hello World')
Hello World

>>> fprint('Hello World', nl=False)
Hello World
>>> fprint()

>>> fprint('Hello World', do_print=False)

The above fprint() examples are very basic. But you could implement and customise it to your liking.

finput()

• Customizable input function

>>> finput('Enter a number', ret_type=int)
Enter a number: 5

5
>>> finput('Enter a number', ret_type=int)
Enter a number: 5.5

Couldn't return input 5.5 as <class 'int'>
Input type: <class 'str'>
Returning value as string

'5.5'
>>> finput('Enter a number', ret_type=int)
Enter a number: five

Couldn't return input five as <class 'int'>
Input type: <class 'str'>
Returning value as string

'five'

enter_to_continue()

• Wait until user presses enter to continue
• Returns:
  • True: No input was given, only enter was pressed
  • False: Something was written before pressing enter

from py_basic_tools import enter_to_continue

>>> enter_to_continue()
Press enter to continue...

>>> enter_to_continue('Waiting')
Waiting (enter to continue)

>>> enter_to_continue('Waiting', nl=False)
Waiting (enter to continue)
>>> enter_to_continue('Waiting', use_help_text=False)
Waiting

>>> enter_to_continue(use_help_text=False)

choose_from_list()

• Choose one or more variables from user given list
• When choosing more than one, add a space between chosen indexes
• Returns:
  • list of variables: If variables were chosen correctly
  • empty list: If an exception occured

>>> lst = ['foo', 'bar']
>>> choose_from_list(lst)
---Choose 1 value---
(0) foo
(1) bar

Input index: 0
'foo'
>>> choose_from_list(lst, choose_total=2, start_num=1)
---Choose 2 values---
(1) foo
(2) bar

Input index: 1 2
['foo', 'bar']
>>> choose_from_list(lst, start_num=3, choose_until_correct=True)
---Choose 1 value---
(3) foo
(4) bar

Input index: 0

Given index is out of range
List length: 2    Input index: 0

Input index: 3

foo
>>> choose_from_list(lst, choose_total=2, start_num=1, choose_until_correct=False)
---Choose 2 values---
(1) foo
(2) bar

Input index: 0 1
Given index is out of range
Value has to be between: 1-2
[]
>>> choose_from_list(lst, header_text='Choose what you will', header_nl=True, input_text='Input what you will')
Choose what you will

(0) foo
(1) bar

Input what you will: 0

['foo']

read_file()

• Function tries to read the file, and if it fails, it will create the file if the create argument is True.
• If the file is read successfully, the function will return a list of lines from the file

>>> read_file('path/to/file.txt')
File not found: path/to/file.txt

None
>>> read_file('path/to/file.txt', do_print=False)
None
>>> read_file('path/to/file.txt', create=True)
File created: path/to/file.txt

>>> read_file('path/to/file.txt')
['hello', 'world', 'foo bar']

>>> read_file('path/to/file.txt', remove_empty_lines=False)
['hello', 'world', '', 'foo bar']

create_file_dir()

• Creates a file or directory to the given path

>>> create_file_dir('file', 'path/to/file.txt')
File created: path/to/file.txt

>>> create_file_dir('file', 'path/to/file.txt')
File already exists: path/to/file.txt

>>> create_file_dir('file', 'path/to/file.txt', do_print=False)

>>> create_file_dir('file', 'path/to/file.txt', force=True)
File created: path/to/file.txt

>>> create_file_dir('dir', 'path/to/new directory')
Directory created: path/to/new directory

remove_file_dir()

• Removes a file or directory to the given path

>>> remove_file_dir('file', 'path/to/file.txt')
File removed: path/to/file.txt

>>> remove_file_dir('file', 'path/to/another_file.txt')
File is not empty, not removing: file.txt

>>> remove_file_dir('file', 'path/to/another_file.txt', force=True)
File removed: path/to/another file.txt

>>> remove_file_dir('file', 'path/to/another_file.txt')
File not found: path/to/another file.txt

>>> remove_file_dir('dir', 'path/to/directory')
Directory path not found: path/to/directory

get_dir_path_for_file()

• Gets the path to the direcotry where given file is
• Returns:
  • dir_path: Paht to the directory
  • filename: Name of the file

>>> get_dir_path_for_file('path/to/file.txt')
('path/to', 'file.txt')
>>> get_dir_path_for_file('path/to/file.txt', ret_var='filename')
'file.txt'
>>> get_dir_path_for_file('path/to/file.txt', ret_var='dir')
'path/to'

join_path()

• Joins given paths together
  • Like os.path.join()

>>> join_path('hello', 'world')
'hello\\world'
>>> join_path('hello', 'world', join_with='/')
'hello/world'

try_traceback()

Code:

@try_traceback()
def foo():
    raise Exception('foo')

@try_traceback(skip_traceback=True)
def bar():
    raise Exception('bar')

foo()
bar()

Output:

Traceback (most recent call last):
    File "test.py", line 13, in wrapper
        return func(*args, **kwargs)
    File "test.py", line 8, in foo
        raise Exception('foo')

bar() doesn't raise an exception, because traceback was skipped.

func_timer()

• The decorator can be used to time any function, and it will print the time it took to run the function
• Returns:
  • ret_val: Values to return from the function
  • time_delta: The time it took for the function to run

Code:

from time import sleep

@func_timer()
def foo(sec_to_sleep):
    sleep(sec_to_sleep)
    return 'Foo is done'

@func_timer(ret_time=True, do_print=False)
def bar(sec_to_sleep):
    sleep(sec_to_sleep)
    return 'bar is done'

foo(3)
bar(3)

Output:

Function timer started

Function foo(3,) {} Took 3.0094 seconds to run

Foo is done
('bar is done', 3.0135743618011475)