How do you remove blank lines in Python?

How do you remove blank lines in Python?

Use the list comprehension syntax [line for line in lines if condition] with lines as the previous result and condition as line. strip() != “” to remove any empty lines from lines . Declare an empty string and use a for-loop to iterate over the previous result.

How do I remove blank lines from a string?

Replace(subjectString, @”^\s+$[\r\n]*”, string. Empty, RegexOptions. Multiline); ^\s+$ will remove everything from the first blank line to the last (in a contiguous block of empty lines), including lines that only contain tabs or spaces.

How do you remove lines from a text file in Python?

How to delete a line from a file in Python

1. a_file = open(“sample.txt”, “r”) get list of lines.
2. lines = a_file. readlines()
3. a_file.
4. new_file = open(“sample.txt”, “w”)
5. for line in lines:
6. if line. strip(“\n”) != “line2”: Delete “line2” from new_file.
7. new_file. write(line)
8. new_file.

What is strip in Python?

strip() is an inbuilt function in Python programming language that returns a copy of the string with both leading and trailing characters removed (based on the string argument passed).

What is blank line in Python?

Python’s print function adds a newline character to its input. If you give it no input it will just print a newline character print() Will print an empty line. If you want to have an extra line after some text you’re printing, you can a newline to your text my_str = “hello world” print(my_str + “\n”)

What does Splitlines mean in Python?

The splitlines() method splits a string into a list. The splitting is done at line breaks.

How do you remove the first few lines in Python?

Use the below steps to delete the first line from a file.

1. Open file in a read and write mode ( r+ )
2. Read all lines from a file.
3. Move file pointer at the start of a file using the seek() method.
4. Truncate the file.
5. Write all lines from a file except the first line.

What does Strip and split do in Python?

There’s no difference. split() ignores whitespace on the ends of the input by default. People call strip() first either because they think it’s clearer or because they don’t know this behavior of split() .

What does \b mean in Python?

The b” notation is used to specify a bytes string in Python. Compared to the regular strings, which have ASCII characters, the bytes string is an array of byte variables where each hexadecimal element has a value between 0 and 255. Here, the string variable is not a regular string; instead, it is a bytes string.