diff --git a/picard/formats/__init__.py b/picard/formats/__init__.py
index d737b809f..d36ade58c 100644
--- a/picard/formats/__init__.py
+++ b/picard/formats/__init__.py
@@ -47,7 +47,7 @@ def guess_format(filename, options=_formats):
     results = []
     # Since we are reading only 128 bytes and then immediately closing the file,
     # use unbuffered mode.
-    with file(filename, "rb", 0) as fileobj:
+    with open(filename, "rb", 0) as fileobj:
         header = fileobj.read(128)
         # Calls the score method of a particular format's associated filetype
         # and assigns a positive score depending on how closely the fileobj's header matches
@@ -65,7 +65,7 @@ def guess_format(filename, options=_formats):
     return None
 
 
-def open(filename):
+def open_(filename):
     """Open the specified file and return a File instance with the appropriate format handler, or None."""
     try:
         # First try to guess the format on the basis of file headers
diff --git a/picard/tagger.py b/picard/tagger.py
index 9ac894537..b6621db80 100644
--- a/picard/tagger.py
+++ b/picard/tagger.py
@@ -61,7 +61,7 @@ from picard.const import USER_DIR, USER_PLUGIN_DIR
 from picard.dataobj import DataObject
 from picard.disc import Disc
 from picard.file import File
-from picard.formats import open as open_file
+from picard.formats import open_ as open_file
 from picard.track import Track, NonAlbumTrack
 from picard.releasegroup import ReleaseGroup
 from picard.collection import load_user_collections
diff --git a/test/test_formats.py b/test/test_formats.py
index 4ebc9379c..92b5d53c4 100644
--- a/test/test_formats.py
+++ b/test/test_formats.py
@@ -52,11 +52,11 @@ class FakeTagger(QtCore.QObject):
 
 def save_and_load_metadata(filename, metadata):
     """Save new metadata to a file and load it again."""
-    f = picard.formats.open(filename)
+    f = picard.formats.open_(filename)
     loaded_metadata = f._load(filename)
     f._copy_loaded_metadata(loaded_metadata)
     f._save(filename, metadata)
-    f = picard.formats.open(filename)
+    f = picard.formats.open_(filename)
     loaded_metadata = f._load(filename)
     return loaded_metadata
 
@@ -165,12 +165,12 @@ class FormatsTest(unittest.TestCase):
             self.addCleanup(os.unlink, temp_file)
             shutil.copy(self.original, temp_file)
             audio = picard.formats.guess_format(temp_file)
-            audio_original = picard.formats.open(self.filename)
+            audio_original = picard.formats.open_(self.filename)
             self.assertEqual(type(audio), type(audio_original))
 
     def test_split_ext(self):
         if self.original:
-            f = picard.formats.open(self.filename)
+            f = picard.formats.open_(self.filename)
             self.assertEqual(f._fixed_splitext(f.filename), os.path.splitext(f.filename))
             self.assertEqual(f._fixed_splitext(f.EXTENSIONS[0]), ('', f.EXTENSIONS[0]))
             self.assertEqual(f._fixed_splitext('.test'), os.path.splitext('.test'))
@@ -1132,7 +1132,7 @@ class TestCoverArt(unittest.TestCase):
                 },
             }
             for t in tests:
-                f = picard.formats.open(self.filename)
+                f = picard.formats.open_(self.filename)
                 metadata = Metadata()
                 imgdata = tests[t]['data']
                 metadata.append_image(
@@ -1142,7 +1142,7 @@ class TestCoverArt(unittest.TestCase):
                 )
                 f._save(self.filename, metadata)
 
-                f = picard.formats.open(self.filename)
+                f = picard.formats.open_(self.filename)
                 loaded_metadata = f._load(self.filename)
                 image = loaded_metadata.images[0]
                 self.assertEqual(image.mimetype, tests[t]['mime'])
@@ -1230,10 +1230,10 @@ class TestCoverArt(unittest.TestCase):
     def _test_cover_art_types(self, filename, expect):
         self._set_up(filename)
         try:
-            f = picard.formats.open(self.filename)
+            f = picard.formats.open_(self.filename)
             f._save(self.filename, self._cover_metadata())
 
-            f = picard.formats.open(self.filename)
+            f = picard.formats.open_(self.filename)
             loaded_metadata = f._load(self.filename)
             found = set()
             for n, image in enumerate(loaded_metadata.images):
@@ -1245,10 +1245,10 @@ class TestCoverArt(unittest.TestCase):
     def _test_cover_art_types_only_front(self, filename, expect):
         self._set_up(filename, {'embed_only_one_front_image': True})
         try:
-            f = picard.formats.open(self.filename)
+            f = picard.formats.open_(self.filename)
             f._save(self.filename, self._cover_metadata())
 
-            f = picard.formats.open(self.filename)
+            f = picard.formats.open_(self.filename)
             loaded_metadata = f._load(self.filename)
             found = set()
             for n, image in enumerate(loaded_metadata.images):