Danh sách trống của danh sách python

Đôi khi, trong khi làm việc với python, chúng ta có thể gặp sự cố cần lọc ra một số dữ liệu trống. Đây có thể là không, chuỗi trống, v.v. Điều này có thể có các ứng dụng trong nhiều lĩnh vực. Hãy để chúng tôi thảo luận về những cách nhất định trong đó việc loại bỏ các danh sách trống có thể được thực hiện.  

Phương pháp 1. Sử dụng hiểu danh sách. Đây là một trong những cách mà vấn đề này có thể được giải quyết. Trong phần này, chúng tôi lặp qua danh sách và không bao gồm danh sách trống.  

Thí dụ

Python3

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

Đầu ra

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

Phương pháp 2. Sử dụng phương thức filter()

Đây là một cách khác mà nhiệm vụ này có thể được thực hiện. Trong phần này, chúng tôi lọc Không có giá trị. Các giá trị không bao gồm cả danh sách trống và do đó chúng bị xóa

Thí dụ

Python3

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]

The original list is : [5, 6, [], 3, [], [], 9]
List after empty list removal : [5, 6, 3, 9]