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12 Python List Methods #technology #softwareengineering #dataengineering #python #shorts
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The 12 Python List Methods You Can't Live Without ๐
๐น๐๐ = [๐ญ, ๐ฎ, ๐ฏ, ๐ฐ, ๐ฑ,] # ๐๐ฆ๐ต'๐ด ๐ด๐ต๐ข๐ณ๐ต ๐ธ๐ช๐ต๐ฉ ๐ต๐ฉ๐ช๐ด ๐ญ๐ช๐ด๐ต
Illustration by - Nikki Siapno!
1. ๐น๐๐.๐ฎ๐ฝ๐ฝ๐ฒ๐ป๐ฑ(๐ฒ) โก๏ธ Adds 6 at the end. Now ๐น๐๐ is [๐ญ, ๐ฎ, ๐ฏ, ๐ฐ, ๐ฑ, ๐ฒ]
2. ๐น๐๐.๐ถ๐ป๐๐ฒ๐ฟ๐(๐ฌ, ๐ฌ) โก๏ธ Inserts 0 at position 0. Now ๐น๐๐ is [๐ฌ, ๐ญ, ๐ฎ, ๐ฏ, ๐ฐ, ๐ฑ, ๐ฒ]
3. ๐น๐๐.๐ฟ๐ฒ๐บ๐ผ๐๐ฒ(๐ฏ) โก๏ธ Removes first occurrence of 3. Now ๐น๐๐ is [๐ฌ, ๐ญ, ๐ฎ, ๐ฐ, ๐ฑ, ๐ฒ]
4. ๐น๐๐.๐ฝ๐ผ๐ฝ() โก๏ธ Removes last item. Now ๐น๐๐ is [๐ฌ, ๐ญ, ๐ฎ, ๐ฐ, ๐ฑ]
5. ๐น๐๐.๐ฝ๐ผ๐ฝ(๐ฎ) โก๏ธ Removes item at index 2. Now ๐น๐๐ is [๐ฌ, ๐ญ, ๐ฐ, ๐ฑ]
6. ๐น๐๐.๐ฐ๐น๐ฒ๐ฎ๐ฟ() โก๏ธ Clears the list. Now ๐น๐๐ is []
7. ๐น๐๐ = [๐ญ, ๐ฎ, ๐ฏ, ๐ณ, ๐ฑ]; ๐น๐๐.๐ถ๐ป๐ฑ๐ฒ๐ (๐ฏ) โก๏ธ Returns index of ๐ฏ, which is ๐ฎ
8. ๐น๐๐.๐ฐ๐ผ๐๐ป๐(๐ฏ) โก๏ธ Returns count of ๐ฏ, which is ๐ญ
9. ๐น๐๐.๐๐ผ๐ฟ๐() โก๏ธ Sorts the list. Now ๐น๐๐ is [๐ญ, ๐ฎ, ๐ฏ, ๐ฑ, ๐ณ]
10. ๐น๐๐.๐ฟ๐ฒ๐๐ฒ๐ฟ๐๐ฒ() โก๏ธ Reverses the list. Now ๐น๐๐ is [๐ณ, ๐ฑ, ๐ฏ, ๐ฎ, ๐ญ]
11. ๐ป๐ฒ๐_๐น๐๐ = ๐น๐๐.๐ฐ๐ผ๐ฝ๐() โก๏ธ Copies lst to new_lst. Now ๐ป๐ฒ๐_๐น๐๐ is [๐ณ, ๐ฑ, ๐ฏ, ๐ฎ, ๐ญ]
12. ๐น๐๐.๐ฒ๐ ๐๐ฒ๐ป๐ฑ([๐ฒ, ๐ณ, ๐ด]) โก๏ธ Adds elements at the end. Now ๐น๐๐ is [๐ณ, ๐ฑ, ๐ฏ, ๐ฎ, ๐ญ, ๐ฒ, ๐ณ, ๐ด]
Please note that some methods like ๐ฝ๐ผ๐ฝ(), ๐ฟ๐ฒ๐บ๐ผ๐๐ฒ(), ๐ฐ๐น๐ฒ๐ฎ๐ฟ(), ๐๐ผ๐ฟ๐(), ๐ฟ๐ฒ๐๐ฒ๐ฟ๐๐ฒ(), and ๐ฒ๐ ๐๐ฒ๐ป๐ฑ() alter the original list.
If you don't want to alter the original list, you should make a copy of it before using these methods.
For instance, to sort a list without altering the original, you would do something like sorted_list = ๐๐ผ๐ฟ๐๐ฒ๐ฑ(๐ผ๐ฟ๐ถ๐ด๐ถ๐ป๐ฎ๐น_๐น๐ถ๐๐).
๐ Enjoying my content? Stay in the loop! ๐
๐น๐๐ = [๐ญ, ๐ฎ, ๐ฏ, ๐ฐ, ๐ฑ,] # ๐๐ฆ๐ต'๐ด ๐ด๐ต๐ข๐ณ๐ต ๐ธ๐ช๐ต๐ฉ ๐ต๐ฉ๐ช๐ด ๐ญ๐ช๐ด๐ต
Illustration by - Nikki Siapno!
1. ๐น๐๐.๐ฎ๐ฝ๐ฝ๐ฒ๐ป๐ฑ(๐ฒ) โก๏ธ Adds 6 at the end. Now ๐น๐๐ is [๐ญ, ๐ฎ, ๐ฏ, ๐ฐ, ๐ฑ, ๐ฒ]
2. ๐น๐๐.๐ถ๐ป๐๐ฒ๐ฟ๐(๐ฌ, ๐ฌ) โก๏ธ Inserts 0 at position 0. Now ๐น๐๐ is [๐ฌ, ๐ญ, ๐ฎ, ๐ฏ, ๐ฐ, ๐ฑ, ๐ฒ]
3. ๐น๐๐.๐ฟ๐ฒ๐บ๐ผ๐๐ฒ(๐ฏ) โก๏ธ Removes first occurrence of 3. Now ๐น๐๐ is [๐ฌ, ๐ญ, ๐ฎ, ๐ฐ, ๐ฑ, ๐ฒ]
4. ๐น๐๐.๐ฝ๐ผ๐ฝ() โก๏ธ Removes last item. Now ๐น๐๐ is [๐ฌ, ๐ญ, ๐ฎ, ๐ฐ, ๐ฑ]
5. ๐น๐๐.๐ฝ๐ผ๐ฝ(๐ฎ) โก๏ธ Removes item at index 2. Now ๐น๐๐ is [๐ฌ, ๐ญ, ๐ฐ, ๐ฑ]
6. ๐น๐๐.๐ฐ๐น๐ฒ๐ฎ๐ฟ() โก๏ธ Clears the list. Now ๐น๐๐ is []
7. ๐น๐๐ = [๐ญ, ๐ฎ, ๐ฏ, ๐ณ, ๐ฑ]; ๐น๐๐.๐ถ๐ป๐ฑ๐ฒ๐ (๐ฏ) โก๏ธ Returns index of ๐ฏ, which is ๐ฎ
8. ๐น๐๐.๐ฐ๐ผ๐๐ป๐(๐ฏ) โก๏ธ Returns count of ๐ฏ, which is ๐ญ
9. ๐น๐๐.๐๐ผ๐ฟ๐() โก๏ธ Sorts the list. Now ๐น๐๐ is [๐ญ, ๐ฎ, ๐ฏ, ๐ฑ, ๐ณ]
10. ๐น๐๐.๐ฟ๐ฒ๐๐ฒ๐ฟ๐๐ฒ() โก๏ธ Reverses the list. Now ๐น๐๐ is [๐ณ, ๐ฑ, ๐ฏ, ๐ฎ, ๐ญ]
11. ๐ป๐ฒ๐_๐น๐๐ = ๐น๐๐.๐ฐ๐ผ๐ฝ๐() โก๏ธ Copies lst to new_lst. Now ๐ป๐ฒ๐_๐น๐๐ is [๐ณ, ๐ฑ, ๐ฏ, ๐ฎ, ๐ญ]
12. ๐น๐๐.๐ฒ๐ ๐๐ฒ๐ป๐ฑ([๐ฒ, ๐ณ, ๐ด]) โก๏ธ Adds elements at the end. Now ๐น๐๐ is [๐ณ, ๐ฑ, ๐ฏ, ๐ฎ, ๐ญ, ๐ฒ, ๐ณ, ๐ด]
Please note that some methods like ๐ฝ๐ผ๐ฝ(), ๐ฟ๐ฒ๐บ๐ผ๐๐ฒ(), ๐ฐ๐น๐ฒ๐ฎ๐ฟ(), ๐๐ผ๐ฟ๐(), ๐ฟ๐ฒ๐๐ฒ๐ฟ๐๐ฒ(), and ๐ฒ๐ ๐๐ฒ๐ป๐ฑ() alter the original list.
If you don't want to alter the original list, you should make a copy of it before using these methods.
For instance, to sort a list without altering the original, you would do something like sorted_list = ๐๐ผ๐ฟ๐๐ฒ๐ฑ(๐ผ๐ฟ๐ถ๐ด๐ถ๐ป๐ฎ๐น_๐น๐ถ๐๐).
๐ Enjoying my content? Stay in the loop! ๐