[bugfix] Fix error thrown on saving user-passwords.py

Bug: T219762
Change-Id: I82c0293b49a3d3932d5ebe1248edcc4ae2f1e1e7
---
M generate_user_files.py
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/generate_user_files.py b/generate_user_files.py
index 87562fb..36decb8 100755
--- a/generate_user_files.py
+++ b/generate_user_files.py
@@ -372,17 +372,19 @@
         raise
 
     if botpasswords:
-        # Save if necessary user-password.py
+        # Save user-password.py if necessary
+        # user-config.py is already created at this point
+        # therefore pywikibot.tools can be imported safely
+        from pywikibot.tools import file_mode_checker
         try:
             # First create an empty file with good permissions, before writing
             # in it
             with codecs.open(_fncpass, 'w', 'utf-8') as f:
                 f.write('')
-                pywikibot.tools.file_mode_checker(_fncpass, mode=0o600,
-                                                  quiet=True)
+                file_mode_checker(_fncpass, mode=0o600, quiet=True)
             with codecs.open(_fncpass, 'w', 'utf-8') as f:
                 f.write(PASSFILE_CONFIG.format(botpasswords=botpasswords))
-                pywikibot.tools.file_mode_checker(_fncpass, mode=0o600)
+                file_mode_checker(_fncpass, mode=0o600)
                 pywikibot.output("'{0}' written.".format(_fncpass))
         except EnvironmentError:
             os.remove(_fncpass)

