bpo-41497: Fix potential UnicodeDecodeError in dis CLI (GH-21757)

(cherry picked from commit a4084b9d1e40c1c9259372263d1fe8c8a562b093)

Co-authored-by: Konge <zkonge@outlook.com>

diff --git a/Lib/dis.py b/Lib/dis.py
index 10e5f7fb08ab21c521e08709b7d46751fa3aa5cc..e289e176c78ffd78ee6e42a6b41acc0298f63933 100644 (file)
--- a/Lib/dis.py
+++ b/Lib/dis.py
@@ -542,7 +542,7 @@ def _test():
     import argparse
 
     parser = argparse.ArgumentParser()
-    parser.add_argument('infile', type=argparse.FileType(), nargs='?', default='-')
+    parser.add_argument('infile', type=argparse.FileType('rb'), nargs='?', default='-')
     args = parser.parse_args()
     with args.infile as infile:
         source = infile.read()

diff --git a/Misc/NEWS.d/next/Library/2020-08-07-06-06-29.bpo-41497.aBtsWz.rst b/Misc/NEWS.d/next/Library/2020-08-07-06-06-29.bpo-41497.aBtsWz.rst
new file mode 100644 (file)
index 0000000..2c863ed
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2020-08-07-06-06-29.bpo-41497.aBtsWz.rst
@@ -0,0 +1 @@
+Fix potential UnicodeDecodeError in dis module.
\ No newline at end of file