fixed file check

ipinfo_db/client.py

@@ -21,17 +21,19 @@ def __init__(self, access_token=None, path=None, replace=False):
             self.path = DEFAULT_DB_PATH
 
         # Check if file already exists to skip the download.
-        if os.path.exists(self.path) and not self.replace:
+        if os.path.isfile(self.path) and not self.replace:
             pass
         else:
             if self.access_token is None:
                 raise SyntaxError("Token is required to download the file")
 
-            # Create directory if doesn't exist and download file.
+            # Create directory if doesn't exist.
             directory = os.path.dirname(self.path)
             if directory and not os.path.exists(directory):
                 os.makedirs(directory)
-                urllib.request.urlretrieve(DB_DOWNLOAD_URL+self.access_token, self.path)
+
+            # Download file.
+            urllib.request.urlretrieve(DB_DOWNLOAD_URL+self.access_token, self.path)
 
         # Read the mmdb file.
         self.db = maxminddb.open_database(self.path)

setup.py

@@ -20,7 +20,7 @@
     author_email="support@ipinfo.io",
     license="Apache License 2.0",
     packages=["ipinfo_db"],
-    install_requires=["maxminddb"],
+    install_requires=["maxminddb", "appdirs"],
     include_package_data=True,
     zip_safe=False,
 )