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Tag: csv

Python CSV Writer leave a empty line at the end of the file

the following code leave a empty white line at the end of the txt file. how can i not have the writerows not terminate the last line? Answer Firstly, since you are using with open as myFile you don’t need myFile.close(), that is done automatically when you remove the indent. Secondly, if you are willing to add another part to

Read specific columns with pandas or other python module

I have a csv file from this webpage. I want to read some of the columns in the downloaded file (the csv version can be downloaded in the upper right corner). Let’s say I want 2 columns: 59 which in the header is star_name 60 which in the header is ra. However, for some reason the authors of the webpage

How to add pandas data to an existing csv file?

I want to know if it is possible to use the pandas to_csv() function to add a dataframe to an existing csv file. The csv file has the same structure as the loaded data. Answer You can specify a python write mode in the pandas to_csv function. For append it is ‘a’. In your case: The default mode is ‘w’.

Check whether string is in CSV

I want to search a CSV file and print either True or False, depending on whether or not I found the string. However, I’m running into the problem whereby it will return a false positive if it finds the string embedded in a larger string of text. E.g.: It will return True if string is foo and the term foobar

Writing a pandas DataFrame to CSV file

I have a dataframe in pandas which I would like to write to a CSV file. I am doing this using: And getting the following error: Is there any way to get around this easily (i.e. I have unicode characters in my data frame)? And is there a way to write to a tab delimited file instead of a CSV

Adding delimiters and removing commas

I have a file from which I’ve output several columns of information, 4 to be exact. At this moment they are separated by commas, but in order for my buddy to feed them into another script, he wants the format to be with ‘|’ as delimiter and the commas removed. The commas follow every set of data, so after my