How can I find files and then loop over them in Python? -


i have bash script contains following code:

merge_root_files(){     output_file=""$(date -u "+%y-%m-%dt%h%m%s")"z_merged.root"     list_of_files="$(find . -name \*.root -type f)"     command="hadd "${output_file}""     current_file in ${list_of_files};         echo "found root file "${current_file}""         command=""${command}" "${current_file}""     done     echo "merge root files output root file "${output_file}""     echo "merge command: ${command}"     eval "${command}" }  merge_root_files

you can see searches recursively files end in .root , loops on files. how similar in python? imagine generating list of various found files full or relative paths , looping on list, i'm not sure how generate such list.

glob makes easy type of thing. 

import os import glob  # full path .root files root_files = glob.glob('/your_path/*.root')  # root file names root_file_names = [os.path.basename(f) f in glob.iglob('/your_path/*.root')]

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