Stringify the given file name (#545)

diff --git a/httpx/multipart.py b/httpx/multipart.py
index d850f79dcfa7f939b487ac9f3ac57de65768f20f..fcfd25692a614fb19c65befba86048663be09963 100644 (file)
--- a/httpx/multipart.py
+++ b/httpx/multipart.py
@@ -48,7 +48,7 @@ class FileField(Field):
     ) -> None:
         self.name = name
         if not isinstance(value, tuple):
-            self.filename = Path(getattr(value, "name", "upload")).name
+            self.filename = Path(str(getattr(value, "name", "upload"))).name
             self.file = value  # type: typing.Union[typing.IO[str], typing.IO[bytes]]
             self.content_type = self.guess_content_type()
         else: