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Infinite Loop

While loopን ስንጠቀም common የሆነ ችግር ቢኖር የinfinite loop መፈጠር ነው። ይህም infinite loop conditionኡ False መቼም በማይሆንበት ጊዜ ይፈጠራል።


Example of an infinite loop:

while True:
    print("This will print forever")

ከላይ ያለው ፕሮግራም "This will print forever" የሚለውን ዐ/ነገር ያለ ገደብ print ያረጋል።


Breaking Out of a Loop

Infinite Loop avoid ለማረግ "break" statement መጠቀም እንችላለን፣ ይህም የሆነ condition set አርገን እውነት በሚሆንበት ጊዜ loopኡን exit እንድናረግ ይረዳናል።

i = 1
while i <= 10:
    print(i)
    if i == 5:
        break  # Exit the loop when i is 5
    i += 1

ከላይ ያለው ፕሮግራም መጀመሪያ የተፃፈው ከ 1 እስከ 10 ያሉ ቁጥሮችን print እንዲያረግ ቢሆንም የ'i' value 5 ሲሆን እንዲያቆም ቅድመ-ሁኔታ ስላስቀመጥን ልክ የ'i' value 5 ሲሆን loopኡ ይቆማል።


Using Else with While Loop

Python 'else' clause ከ while loop ጋር እንድንጠቀም ይፈቅዳል። የ'else' block executed የሚሆነው የ while loop condition ሀሰት ሲሆን ነው። (i.e., the loop terminates naturally).

ምሳሌ

i = 1
while i <= 5:
    print(i)
    i += 1
else:
    print("Loop has ended")

...ይቀጥላል

#WhileLoop

@python_pioneers
@python_pioneers

😂😂😂😂😂😂😂😂😂

-> @lewtayew

#Fun

@python_pioneers

Common Use Cases

1. Waiting for User Input: የፈለግነውን data እስከምናገኝ User input በተደጋጋሚ እንድንቀበል ይረዳናል።


2. Processing Data Streams: መጨረሻ ላይ እስከምንደርስ data ከfile ወይም ከ network stream continuously እንድናነብ ይረዳናል።

3. Polling: የአንድን resource status periodically check እንድናረግ ይረዳናል።

ምሳሌ: User Input

Here's an example where we keep asking the user for a positive number:

number = -1
while number < 0:
    number = int(input("Enter a positive number: "))
print("You entered: ", number)

ከላይ ያለው ፕሮግራም userኡ positive ቁጥር እንዲያስገባ repeatedly ይጠይቀዋል፣ ቁጥሩን ደግሞ print ያረጋል፣ if the user enters a positive number the loop ends, because the condition becomes false.

...to be continued

#WhileLoop

@python_pioneers
@python_pioneers

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#Quotes

@python_pioneers
@python_pioneers

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መልካም ጊዜ ይሁንላችሁ!

@python_pioneers
@python_pioneers

Control Flow Modifiers in Python

በpython Control flow modifiers የምንላቸው በloop ወይም በconditional statements ውስጥ ከገቡ normal flow of executionን የሚቀይሩ statementኦች ናቸው።
እነዚህም modifiers እነ break, continue, እና pass ናቸው

1. break Statement
ይህን የ break statement የምንጠቀመው አንድን loop prematurely ወይም መጨረሻ ላይ ሳይደርስ ለማቆም ስንፈልግ ነው። እናም loopኡ terminate ያረግና ከloopኡ ቀጥሎ መጀመሪያ ያለው line of code executed ይሆናል።


- ለምሳሌ:

  for i in range(10):
      if i == 4:
          break
      print(i)  # Output: 0, 1, 2, 3
  

2. continue Statement

ይህኛው modifier ደግሞ የloopኡ current iteration ውስጥ ያለውን code ዘለን ወደ ቀጣይ iteration ለማለፍ ስንፈልግ እንጠቀመዋለን።
loopኡን terminate አያረገውም ፣ it just skips the remaining code for the current iteration.


- ለምሳሌ:

  for i in range(10):
      if i % 2 == 0:
          continue
      print(i)  # Output: 1, 3, 5, 7, 9
  

..to be contd

#break
#continue

@python_pioneers
@python_pioneers

...contd

3. pass Statement

It is a no-operation statement in Python
- pass statementን የምንጠቀመው እንደ place holder ነው። ማለትም የሆነ code እየፃፋችሁ ከሆነ ግዜ በኃላ የምትጨምሩት line of code ካለ 'pass' ን እንደ place holder ትጠቀሙታላችሁ።

- ለምሳሌ:

  if condition:
      pass  # To be implemented later
  

4. else Clause with Loops

else clause ከloop ጋር መጠቀም እንችላለን፣ as long as a break statement is not used.

- ለምሳሌ:

  for i in range(5):
      print(i)
  else:
      print("Loop completed")  # This will be printed because the loop was not terminated by a break
  

- ምሳሌ : elseን after break ስንጠቀም:

  for i in range(5):
      if i == 3:
          break
      print(i)
  else:
      print("Loop completed")  # This will not be printed because the loop was terminated by a break
  

እነዚህን control flow modifiers መረዳት የloops እና conditionals flow manage በማረግ efficient እና readable code መፃፍ እንድትችሉ ይረዳችኋል።

#pass
#break

@python_pioneers
@python_pioneers