def search_text(file, text, new_text):
    f = open(file, 'r')
    content = f.read()
    print(text, content.find(new_text))
    #if len(text) < len(new_text) and content.find(new_text)>=0:
    #    return
    content = content.replace(text, new_text)
    f.close()
    with open(file, 'w') as f:
        f.write(content)

file = './api/settings.py'
text1 = "'PORT': '5423'"
newtext1 = "'PORT': '5423'"
search_text(file, text1, newtext1)

text1 = "MODE = 'prod'"
newtext1 = "MODE = 'dev'"
search_text(file, text1, newtext1)

text1 = "DEBUG = False"
newtext1 = "DEBUG = True"
search_text(file, text1, newtext1)