Move some things out of contexts to reduce indent.

Author: QuLogic

lib/matplotlib/backends/backend_ps.py

@@ -229,22 +229,21 @@ def _font_to_ps_type42(font_path, chars, fh):
     fh : file-like
         Where to write the font.
     """
+    subset_str = ''.join(chr(c) for c in chars)
+    _log.debug("SUBSET %s characters: %s", font_path, subset_str)
     try:
-        subset_str = ''.join(chr(c) for c in chars)
-        _log.debug("SUBSET %s characters: %s", font_path, subset_str)
         fontdata = _backend_pdf_ps.get_glyphs_subset(font_path, subset_str)
         _log.debug("SUBSET %s %d -> %d", font_path, os.stat(font_path).st_size,
                    fontdata.getbuffer().nbytes)
 
         # Give ttconv a subsetted font along with updated glyph_ids.
+        font = FT2Font(fontdata)
+        glyph_ids = [font.get_char_index(c) for c in chars]
         with TemporaryDirectory() as tmpdir:
             tmpfile = os.path.join(tmpdir, "tmp.ttf")
-            font = FT2Font(fontdata)
-            glyph_ids = [font.get_char_index(c) for c in chars]
 
             with open(tmpfile, 'wb') as tmp:
                 tmp.write(fontdata.getvalue())
-                tmp.flush()
 
             # TODO: allow convert_ttf_to_ps to input file objects (BytesIO)
             convert_ttf_to_ps(os.fsencode(tmpfile), fh, 42, glyph_ids)