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-rw-r--r--Lib/lib2to3/pgen2/driver.py5
1 files changed, 4 insertions, 1 deletions
diff --git a/Lib/lib2to3/pgen2/driver.py b/Lib/lib2to3/pgen2/driver.py
index 665f1ca..f72bbca 100644
--- a/Lib/lib2to3/pgen2/driver.py
+++ b/Lib/lib2to3/pgen2/driver.py
@@ -126,7 +126,10 @@ def load_grammar(gt="Grammar.txt", gp=None,
g = pgen.generate_grammar(gt)
if save:
logger.info("Writing grammar tables to %s", gp)
- g.dump(gp)
+ try:
+ g.dump(gp)
+ except IOError as e:
+ logger.info("Writing failed:"+str(e))
else:
g = grammar.Grammar()
g.load(gp)