tests: fix a resource warning

a108266f · Jérome Perrin · f7d36f80 · a108266f
Commit a108266f authored Jun 07, 2021 by Jérome Perrin
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slapos/recipe/template/README.txt slapos/recipe/template/README.txt +2 -1

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--- a/slapos/recipe/template/README.txt
+++ b/slapos/recipe/template/README.txt
@@ -55,7 +55,8 @@ Let's write a file template::
 Compute its MD5 sum::
    >>> from hashlib import md5
-    >>> md5sum = md5(open('template.in', 'rb').read()).hexdigest()
+    >>> with open('template.in', 'rb') as f:
+    ...   md5sum = md5(f.read()).hexdigest()
 Write the ``buildout.cfg`` using slapos.recipe.template::