Make python-magic dependency actually optional

README.md

@@ -16,6 +16,8 @@ However, if you want to install manually, you will need:
 
 - websocket-client - ```pip install websocket-client```
 - requests - ```pip install requests```
+
+And for automatic file type detection for pushFile (optional):
 - python-magic - ```pip install python-magic```
 
 You can get your API Key from https://www.pushbullet.com/#settings/account

pushbullet/pushbullet.py

@@ -167,7 +167,11 @@ def pushFile(self, recipient, file_name, body, file, file_type=None, recipient_t
         """
 
         if not file_type:
-            import magic
+            try:
+                import magic
+            except ImportError:
+                raise Exception("No file_type given and python-magic isn't installed")
+
             file_type = magic.from_buffer(file.read(1024))
             file.seek(0)
 

setup.py

@@ -11,6 +11,8 @@
       zip_safe=False,
       install_requires=[
           'websocket-client',
-          'requests',
-          'python-magic'
-      ])
+          'requests'
+      ],
+      extras_require={
+          'magic': ['python-magic']
+      })