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-rwxr-xr-xexamples/prompts/regular-language.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/examples/prompts/regular-language.py b/examples/prompts/regular-language.py
index cbe7256..12cf257 100755
--- a/examples/prompts/regular-language.py
+++ b/examples/prompts/regular-language.py
@@ -12,6 +12,7 @@ Type for instance::
This example shows how you can define the grammar of a regular language and how
to use variables in this grammar with completers and tokens attached.
"""
+
import math
from prompt_toolkit import prompt
@@ -99,7 +100,7 @@ if __name__ == "__main__":
}[vars.get("operator1") or vars.get("operator2")]
# Execute and print the result.
- print("Result: %s\n" % (operator(var1, var2)))
+ print(f"Result: {operator(var1, var2)}\n")
elif vars.get("operator2"):
print("Operator 2")