1 files changed, 7 insertions, 0 deletions
diff --git a/progs/a155.py b/progs/a155.py
new file mode 100644
index 0000000..d9193e0
--- /dev/null
+++ b/progs/a155.py
@@ -0,0 +1,7 @@
+import re
+def text_match_zero_one(text):
+        patterns = 'ab?'
+        if re.search(patterns,  text):
+                return 'Found a match!'
+        else:
+                return('Not matched!')
+\ No newline at end of file