Cara menggunakan strip list python

Remove leading and trailing Zeros from a string in Python #

Use the str.strip() method to remove the leading and trailing zeros from a string, e.g. result = my_str.strip('0'). The str.strip() method will return a copy of the string with the leading and trailing zeros removed.

Table of Contents

  • Remove leading and trailing Zeros from a string in Python #
  • Remove leading and trailing Zeros from a list of strings #
  • How do I remove zeros from a nested list in Python?
  • How do I remove a value from a list in Python?
  • How do I remove the middle element from a list in Python?

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my_str = '00052140000' # ✅ remove leading and trailing zeros from string result = my_str.strip('0') print(result) # 👉️ '5214' # --------------------------------------- # ✅ remove leading and trailing zeros from list of strings my_list = ['00120', '003400', '005600'] result = [item.strip('0') for item in my_list] print(result) # 👉️ ['12', '34', '56']

We used the str.strip() method to remove the leading and trailing zeros from a string.

Note that there are also str.lstrip() and str.rstrip() methods to remove only the leading or trailing zeros.

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print('005400'.strip('0')) # 👉️ '54' print('005400'.lstrip('0')) # 👉️ '5400' print('005400'.rstrip('0')) # 👉️ '0054'

The str.strip method returns a copy of the string with the provided leading and trailing characters removed.

The method does not change the original string, it returns a new string. Strings are immutable in Python.

The str.strip() removes the provided characters from the leading and trailing ends until it reaches a character that is not contained in the provided set.

You might also have to handle the scenario where your string contains a single 0.

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print('0'.strip('0')) # 👉️ "" # 👇️ return '0' if string only contains zeros print('0'.strip('0') or '0') # 👉️ "0"

You can use the or operator to provide a fallback value if the string only contains zeros.

If stripping the zeros from the string returns an empty string (a falsy value), we return a string containing a zero.

Remove leading and trailing Zeros from a list of strings #

To remove leading and trailing Zeros from a list of strings:

  1. Use a list comprehension to iterate over the list.
  2. On each iteration, use the str.strip() method to remove the leading and trailing zeros.
  3. The strings in the new list won't contain any leading or trailing zeros.

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my_str = '00052140000' my_list = ['00120', '003400', '005600'] result = [item.strip('0') for item in my_list] print(result) # 👉️ ['12', '34', '56']

We used a list comprehension to iterate over the list.

List comprehensions are used to perform some operation for every element, or select a subset of elements that meet a condition.

On each iteration, we call the strip() method on the string to remove any leading and trailing zeros and return the result.

If you need to remove only the leading zeros from each string in the list, use the str.lstrip() method.

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my_list = ['00120', '003400', '005600'] result = [item.lstrip('0') for item in my_list] print(result) # 👉️ ['120', '3400', '5600']

Similarly, if you only want to remove the trailing zeros from each string in the list, use the str.rstrip() method.

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my_list = ['00120', '003400', '005600'] result = [item.rstrip('0') for item in my_list] print(result) # 👉️ ['0012', '0034', '0056']

The str.lstrip method returns a copy of the string with the leading characters removed.

The str.rstrip method returns a copy of the string with the trailing characters removed.

How do I remove zeros from a nested list in Python?

Read the doc: docs.python.org/3/tutorial/datastructures.html "list. remove(x) ... Remove the first item from the list whose value is equal to x." OP, do NOT use bare except statements, this is bad practice.

How do I remove a value from a list in Python?

How to Remove an Element from a List Using the remove() Method in Python. To remove an element from a list using the remove() method, specify the value of that element and pass it as an argument to the method. remove() will search the list to find it and remove it.

How do I remove the middle element from a list in Python?

deleteMid() will delete the node from the middle of the list:.

It first checks whether the head is null (empty list) then, it will return from the function as there is no node present in the list..

If the list is not empty, it will check whether the list has only one node..