Explicitly open files as 'r' instead of leaving it out

telethon_generator/generators/docs.py

@@ -68,7 +68,7 @@ def _get_relative_path(destination, relative_to, folder=False):
 
 def _find_title(html_file):
     """Finds the <title> for the given HTML file, or (Unknown)."""
-    with open(html_file) as fp:
+    with open(html_file, 'r') as fp:
         for line in fp:
             if '<title>' in line:
                 # + 7 to skip len('<title>')
@@ -221,7 +221,7 @@ def _get_description(arg):
 
 def _copy_replace(src, dst, replacements):
     """Copies the src file into dst applying the replacements dict"""
-    with open(src) as infile, open(dst, 'w') as outfile:
+    with open(src, 'r') as infile, open(dst, 'w') as outfile:
         outfile.write(re.sub(
             '|'.join(re.escape(k) for k in replacements),
             lambda m: str(replacements[m.group(0)]),

telethon_generator/parsers/errors.py

@@ -90,7 +90,7 @@ def parse_errors(json_file, descriptions_file):
 
     The method yields `Error` instances as a result.
     """
-    with open(json_file, encoding='utf-8') as f:
+    with open(json_file, 'r', encoding='utf-8') as f:
         data = json.load(f)
 
     errors = defaultdict(set)
@@ -124,7 +124,7 @@ def parse_errors(json_file, descriptions_file):
     # Prefer the descriptions that are related with Telethon way of coding
     # to those that PWRTelegram's API provides.
     telethon_descriptions = {}
-    with open(descriptions_file, encoding='utf-8') as f:
+    with open(descriptions_file, 'r', encoding='utf-8') as f:
         for line in f:
             line = line.strip()
             if line and not line.startswith('#'):

telethon_generator/parsers/tlobject.py

@@ -278,7 +278,7 @@ def parse_tl(file_path, layer, invalid_bot_methods=None):
     if invalid_bot_methods is None:
         invalid_bot_methods = set()
 
-    with open(file_path, encoding='utf-8') as file:
+    with open(file_path, 'r', encoding='utf-8') as file:
         is_function = False
         for line in file:
             comment_index = line.find('//')
@@ -307,7 +307,7 @@ def parse_tl(file_path, layer, invalid_bot_methods=None):
 def find_layer(file_path):
     """Finds the layer used on the specified scheme.tl file."""
     layer_regex = re.compile(r'^//\s*LAYER\s*(\d+)$')
-    with open(file_path, encoding='utf-8') as file:
+    with open(file_path, 'r', encoding='utf-8') as file:
         for line in file:
             match = layer_regex.match(line)
             if match: