Python Program To Delete Specific Line From File
Method 1 Deleting a line using a specific position In this method the text file is read line by line using readlines If a line has a position similar to the position to be deleted it is not written in the newly created text file
Deleting A Line From Text File In Python Stack Overflow, f open quot yourfile txt quot quot r quot Next get all your lines from the file lines f readlines Now you can close the file f close And reopen it in write mode f open quot yourfile txt quot quot w quot Then write your lines back except the line you want to delete for line in lines if quot 699 quot not in line f write line At the end close the file again
Python How Do I Delete A Line That Contains A Certain String
What I am trying to do here is 1 read lines from a text file 2 find lines that contain certain string 3 delete that line and write the result in a new text file For instance if I have a text Stack Overflow
How To Delete A Specific Line In A File PythonForBeginners, In this guide we ll cover several ways of removing lines from a text file using Python We ll see how to remove lines based on their position in the document and how to delete content that matches a string We ll also cover examples of using custom logic to tackle more challenging problems
Python Deleting A Line From A Text File Stack Overflow
Python Deleting A Line From A Text File Stack Overflow, How to you delete a specific line from a text file using readlines like f open open quot textfile txt quot quot r quot lines f open readlines How do you use lines to choose a line in textfile txt and delete it Sorry if it doesn t make sense
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Python Delete Lines From A File 4 Ways PYnative
Python Delete Lines From A File 4 Ways PYnative Example 1 Delete lines that match the given text exact match with open quot sample txt quot quot r quot as fp lines fp readlines with open quot sample txt quot quot w quot as fp for line in lines if line strip quot n quot quot text to delete quot fp write line Also you can achieve it using the single loop so it will be much faster
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What is the most efficient way to delete a line from a string in python I have tried content quot first line nsecond line nthird line netc quot splitlines i 0 for line in iter content if len line lt 5 content i quot quot i 1 content n join content Delete Line In String Python Stack Overflow. You could simply iterate over the whole file and write all lines except the one you want to remove Use enumerate to count the lines badline int input which line do you want to delete with open fordel txt as f open out txt w as fo for linenum line in enumerate f start 1 if linenum badline fo write line If you want to always remove the sixth line from your file you can use enumerate For example with open quot file txt quot quot r quot as infile lines infile readlines with open quot file txt quot quot w quot as outfile for pos line in enumerate lines if pos 5 outfile write line
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