import os
for subdir, dirs, files in os.walk('.'):
    for filename in files:
        file = subdir + os.sep + filename
        if file.endswith(".py") or file.endswith(".rst") :
            replaced_content = ""
            print(f"[*] Working on file {file}.")
            with open(file, 'r', encoding='utf-8') as f:
                for line in f:
                    line = line.rstrip()
                    new_line = line.replace("web3 =", "w3 =")
                    replaced_content = replaced_content + new_line + "\n"
            with open(file, 'w', encoding='utf-8') as f:
                f.write(replaced_content)