Changing the way python is used in the creation of the system call

pydr/__init__.py

 #!/usr/bin/env python
 
-__version__ = '0.1.3'
+__version__ = '0.1.4'

pydr/dr.py

 #!/usr/bin/env python
 import os
+import sys
 import math
 import nibabel as nb
 import numpy as np
@@ -274,7 +275,7 @@ def dr(files, grp_maps, workdir, submit_to_cluster=True):
 
     # generate DR jobs
 
-    PYTHON_BIN = os.getenv('PYTHON_BIN', default='python')
+    PYTHON_BIN = sys.executable
 
     with open(f'{workdir}/logs/dr_commands.txt', 'w') as fpr:
         df = pd.read_csv(files)
@@ -312,7 +313,7 @@ def dr(files, grp_maps, workdir, submit_to_cluster=True):
     if not submit_to_cluster:
         with open(f'{workdir}/logs/dr_commands.txt', 'r') as fpr:
             for command in fpr.readlines():
-                logger.info(' '.join(command))
+                logger.info(command)
                 output=run(command)
                 print(output)