include formatting for vim

src/map_data/__init__.py

@@ -0,0 +1 @@
+# vim: set expandtab shiftwidth=4 softtabstop=4:

src/map_data/constants.py

@@ -1,3 +1,5 @@
+# vim: set expandtab shiftwidth=4 softtabstop=4:
+
 UNITFACTOR = {
     "angstrom": 1.0,
     "attometer": 1e-8,

src/util/__init__.py

@@ -0,0 +1 @@
+# vim: set expandtab shiftwidth=4 softtabstop=4:

src/util/env.py

@@ -1,24 +1,22 @@
+# vim: set expandtab shiftwidth=4 softtabstop=4:
+
 import os
-import sys
 import subprocess
+import sys
 from typing import Dict
 
 
 # On Macs the environment of applications can be very different from that in shells, so this convenience function can
 # be used to source a file and return the environment that results from sourcing it.
 # From: https://stackoverflow.com/a/47080959
 def env_from_sourcing(file_to_source_path, include_unexported_variables=False):
-
     a = {}
     if os.path.isfile(file_to_source_path):
         command = f"source {file_to_source_path} && env"
         for line in subprocess.getoutput(command).split("\n"):
             kv = line.split("=")
             k = kv[0]
-            if len(kv) > 1:
-                v = kv[1]
-            else:
-                v = ""
+            v = kv[1] if len(kv) > 1 else ""
             a[k] = v
 
     return a