pylint: fix unspecified-encoding cases

Fix all cases of W1514 unspecified-encoding.

Part of #270

Author: DifferentialOrange

setup.py

@@ -37,7 +37,7 @@ def run(self):
 
         package_dir = self.get_package_dir('tarantool')
         version_file = os.path.join(package_dir, 'version.py')
-        with open(version_file, 'w') as file:
+        with open(version_file, 'w', encoding='utf-8') as file:
             file.write(f"__version__ = '{version}'")
 
         return super().run()
@@ -80,7 +80,7 @@ def get_dependencies(filename):
     root = os.path.dirname(os.path.realpath(__file__))
     requirements = os.path.join(root, filename)
     if os.path.isfile(requirements):
-        with open(requirements) as file:
+        with open(requirements, encoding='utf-8') as file:
             return file.read().splitlines()
     raise RuntimeError("Unable to get dependencies from file " + filename)
 

tarantool/connection.py

@@ -1008,7 +1008,7 @@ def _ssl_load_cert_chain(self, context):
 
 
         if self.ssl_password_file is not None:
-            with open(self.ssl_password_file) as file:
+            with open(self.ssl_password_file, encoding=self.encoding) as file:
                 for line in file:
                     try:
                         context.load_cert_chain(certfile=self.ssl_cert_file,

test/suites/lib/tarantool_server.py

@@ -163,7 +163,7 @@ def log_des(self):
         # pylint: disable=consider-using-with
 
         if self._log_des is None:
-            self._log_des = open(self.logfile_path, 'a')
+            self._log_des = open(self.logfile_path, 'a', encoding='utf-8')
         return self._log_des
 
     @log_des.deleter