How to strip pattern in the string?

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I have below String.

a = "/root/LOAD/LOGS/2018-06-15_13:54/"

How can I get the output:


You can use os.path.dirname to go up a directory as many times as you need to

>>> import os
>>> a = "/root/LOAD/LOGS/2018-06-15_13:54/"
>>> os.path.dirname(a)
>>> os.path.dirname(os.path.dirname(a))

This is easy to wrap in a helper function if you want to move up a known number of directories

def parent_dir(path, n):
    if n > 1:
        return parent_dir(os.path.dirname(path), n-1)
    return os.path.dirname(path)


>>> parent_dir(a, 2)

Remove matched patterns in a string, string. Input vector. Either a character vector, or something coercible to one. pattern. Pattern to look for. The default interpretation is a regular expression,  How to remove a specific special character pattern from a string. String s = "<NOUN>Sam</NOUN> , a student of the University of oxford , won the Ethugalpura International Rating Chess Tournament which concluded on Dec.22 at the Blue Olympiad Hotel"; I want to remove all <NOUN> and </NOUN> tags from the string.

Personally, I prefer the pathlib module.

from pathlib import Path
path = Path("/root/LOAD/LOGS/2018-06-15_13:54/")
parent = path.parent  # == Path("/root/LOAD/LOGS/")
parent_as_string = str(parent)  # == "/root/LOAD/LOGS/"

This is also repeatable

parent_of_parent = path.parent.parent  # == Path('/root/LOAD')

Python String, strip() in-built function of Python is used to remove all the leading and trailing spaces from a string. Syntax : string.strip([remove]). Parameters : remove (​optional):  The strip () method returns a copy of the string with both leading and trailing characters removed (based on the string argument passed). The strip () removes characters from both left and right based on the argument (a string specifying the set of characters to be removed).

There are several methods, I would personally use the re (import re) module. But there is also the possibility to extract the directory without the additional module. It depends on whether you want to look at the slash (subdirectory) or the number of characters is enough (if the directory name does not change).

>>> a = "/root/LOAD/LOGS/2018-06-15_13:54/"    

>>> "/".join(a.split("/")[:-2])    # from right side

>>> "/".join(a.split("/")[:4])     # from left side

>>> a[:15]

Python String strip(), How do I remove special characters from a string in R? The above method results in false positives at the start of the string. For a pattern of length 4, no left-hand part is stripped when looking at positions 1 through 4; for each of these the PATINDEX is applied to the original string. Now let’s say that a matching pattern starts in position 3.

What is the meaning of strip (\n) and split in Python?, all occurrences of “somestr” from the start of a given string. Luckily there are strip quilt patterns you can follow to easily use up all that scrap quilting fabric. Here we’ve found 13 strip quilt patterns that you can easily master and do over and over – until you’ve used up all your scraps! It all started with a print on Etsy.. and now, it’s on fabric.

Python String strip() method, The strip() method returns a copy of the string by removing both the leading and the trailing characters (based on the string argument passed). Python string method strip() returns a copy of the string in which all chars have been stripped from the beginning and the end of the string (default whitespace characters). This method returns a copy of the string in which all chars have been stripped from the beginning and the end of the string

String Manipulation and Regular Expressions, Such string manipulation patterns come up often in the context of data science The basic method of removing characters is the strip() method, which strips  Removing pattern at the end of a string using sed or other bash tools. I would like to remove any ABC at the end of the string. However, it will remove all the A, or B or C at the end of the string.