diff --git a/spinup/run.py b/spinup/run.py
index 0482cb506..e3ecfabfd 100644
--- a/spinup/run.py
+++ b/spinup/run.py
@@ -70,7 +70,7 @@ def process(arg):
     # Assume such flags indicate that a boolean parameter should have
     # value True.
     for k,v in arg_dict.items():
-        if len(v)==0:
+        if len(v) == 0:
             v.append(True)
 
     # Third pass: check for user-supplied shorthands, where a key has
@@ -112,7 +112,7 @@ def process(arg):
     for k in RUN_KEYS:
         if k in arg_dict:
             val = arg_dict[k]
-            assert len(val)==1, \
+            assert len(val) == 1, \
                 friendly_err("You can only provide one value for %s."%k)
             run_kwargs[k] = val[0]
             del arg_dict[k]
@@ -120,7 +120,7 @@ def process(arg):
     # Determine experiment name. If not given by user, will be determined
     # by the algorithm name.
     if 'exp_name' in arg_dict:
-        assert len(arg_dict['exp_name'])==1, \
+        assert len(arg_dict['exp_name']) == 1, \
             friendly_err("You can only provide one value for exp_name.")
         exp_name = arg_dict['exp_name'][0]
         del arg_dict['exp_name']