diff --git a/plugin/autoformat.vim b/plugin/autoformat.vim
index 1875aa3..ba04ed5 100644
--- a/plugin/autoformat.vim
+++ b/plugin/autoformat.vim
@@ -195,6 +195,7 @@ else:
     # It is not entirely clear when and why that happens.
     # However, extra newlines are almost never required, while there are linters that complain
     # about superfluous newlines, so we remove one empty newline at the end of the file.
+    stdoutdata = stdoutdata.decode('utf-8')
     if stdoutdata[-1] == os.linesep:
         stdoutdata = stdoutdata[:-1]
 
diff --git a/plugin/defaults.vim b/plugin/defaults.vim
index 11861de..9e5c6e9 100644
--- a/plugin/defaults.vim
+++ b/plugin/defaults.vim
@@ -4,12 +4,16 @@
 
 
 " Python
-if !exists('g:formatdef_autopep8')
-    let g:formatdef_autopep8 = '"autopep8 - --range ".a:firstline." ".a:lastline." ".(&textwidth ? "--max-line-length=".&textwidth : "")'
+if !exists('g:formatdef_autopep8_1_0_3')
+    let g:formatdef_autopep8_1_0_3 = '"autopep8 - --range ".a:firstline." ".a:lastline." ".(&textwidth ? "--max-line-length=".&textwidth : "")'
+endif
+
+if !exists('g:formatdef_autopep8_1_2_1')
+    let g:formatdef_autopep8_1_2_1 = '"autopep8 - --line-range ".a:firstline." ".a:lastline." ".(&textwidth ? "--max-line-length=".&textwidth : "")'
 endif
 
 if !exists('g:formatters_python')
-    let g:formatters_python = ['autopep8']
+    let g:formatters_python = ['autopep8_1_0_3', 'autopep8_1_2_1']
 endif