add hashbang to modules

3 files changed, 3 insertions, 0 deletions

diff --git a/lib/automata.py b/lib/automata.py
index 50cdcd0..1e47596 100755
--- a/lib/automata.py
+++ b/lib/automata.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 """Classes and helper functions for PTA and other automata."""
 
 from .functions import AnalyticFunction, NormalizationFunction
diff --git a/lib/functions.py b/lib/functions.py
index 0f0bf47..7af1d22 100644
--- a/lib/functions.py
+++ b/lib/functions.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 """
 Utilities for analytic description of parameter-dependent model attributes.
 
diff --git a/lib/parameters.py b/lib/parameters.py
index cf9713c..cf76f00 100644
--- a/lib/parameters.py
+++ b/lib/parameters.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import itertools
 import logging
 import numpy as np