What are the reasons why are regex replacment doesn’t work? I have tried ensuring no excess spaces. When I do df.loc[df[‘column’]==”and another reason with her”] nothing has changed. Answer Please use df.replace(regex=dict)
Tag: regex
Extracting various variables from a file in Python
I have a file that looks like I would like to extract the values of “A”, “B”, “C”, the last value of “E. E.” and all values of “a_{i}” and “a_{i}a_{j}”. To get A, B, and C, I have used this code as I know exactly the lines’ numbers How can I extract the rest? For the last “E.E.” the
Remove words when match with first 3 or 4 characters
I need to remove the words in the sentance which starts with sst or abc I have a sentence in this way: I need to remove those words from the above two sentences. I tried with regex sub module but not working It is removing the word when there is a space only Answer You can use See the regex
Using pyparsing, how can I group expressions that are matched by OneOrMore(expre1|expr2)?
My website receives allows users to post a string that contains several Questions followed by multiple choice answers. There is an enforced style-guide that allows the results to be parsed by Regex and then Questions + MCQ choices are stored in a database, to be later returned in randomized practice exams. I wanted to transition over to pyparsing, because the
Repeat pattern using python regex
Well, I’m cleaning a dataset, using Pandas. I have a column called “Country”, where different rows could have numbers or other information into parenthesis and I have to remove them, for example: Australia1, Perú (country), 3Costa Rica, etc. To do this, I’m getting the column and I make a mapping over it. But I have a problem with this regex,
Issue with conversion of text data into a dataframe
I have a text file where I have several lines and between them, some data which I need to convert to the dataframe(useful data). I iterated the text file line by line and captured the useful data with the help of a regex. Something like this, The data captured look like this I thought to iterate each captured row and
Substitude everything in “()” but ignore those cases where round brackects are inside square brackets “” in regrex
Hi I am trying to use regrex to replace everything surounded by “()” with an empty string “”, but not in the case where “()” is in an angle bracket. e.g. “<..()>” should be ignored and not replaced. Example input: Example output: Following what I read from answer I have tried using the following method: But it instead outputted Can
How to have categorical regex groups with Python
I have a text which corresponds to a pattern can must be split into categories. I thought of using groups to capture parts of the text that correspond to a particular category patern, and then map that part to my category. Unfortunately, as far as I know group names in Python regex cannot have the same name, and I cannot
How to use regex to scrape entire sentences from fragments in python
I have a vtt file as following I want to extract the fragments from the file and merge them into sentences. The output should look something like this I am able to extract the fragments using this I am not sure how to extract entire sentences instead of fragments. Also note that this is just a sample of the vtt
Regular Expression split w/ Lookbehind loses second half
I have a string that contains a number of keywords. I would like to split the string into a list of those keywords (but keep the keywords because they identify what the following data means) Take the following string for example: the important keywords are “ttyp”, “pfil”, “tsng”, “tart”. I would like to split the file so the output looks: