Python3 compatibility (#4)

* Python3 compatibility
  * Use python3 directly in the shebang
  * Python3 syntax fix
  * Fix name of string class

src/python/solar_capture/cli.py

@@ -147,7 +147,7 @@ def help_all(args):
 
 def read_arg_file(f, known_args):
     repeatable_keys = [x.name for x in known_args.values() if x.repeatable]
-    data = file(f).read()
+    data = open(f).read()
     args = []
     arg_indexes = {} # key -> index into args
     for line in data.split('\n'):

src/python/solar_capture/tabulate.py

@@ -21,6 +21,7 @@ def is_int(str):
 def auto_justify_col(col, width):
     if min(map(is_int, col[1:])):
         # All fields (possibly excepting first) are integers.
+
         return [f.rjust(width) for f in col]
     else:
         return [f.ljust(width) for f in col]

src/solar_balancer

@@ -1,4 +1,4 @@
-#!/usr/bin/python2
+#!/usr/bin/python3
 '''
 SPDX-License-Identifier: MIT
 X-SPDX-Copyright-Text: Copyright (C) 2022, Advanced Micro Devices, Inc.
@@ -239,7 +239,7 @@ def main(args):
 if __name__ == '__main__':
     try:
         main(sys.argv[1:])
-    except (sc.SCError, ValueError), e:
+    except (sc.SCError, ValueError) as e:
         s = str(e)
         if 'ERROR:' not in s:
             s = 'ERROR: ' + s

src/solar_css_tunnel_bridge

@@ -1,4 +1,4 @@
-#!/usr/bin/python2
+#!/usr/bin/python3
 '''
 SPDX-License-Identifier: MIT
 X-SPDX-Copyright-Text: Copyright (C) 2022, Advanced Micro Devices, Inc.

src/solar_replay

@@ -1,4 +1,4 @@
-#!/usr/bin/python2
+#!/usr/bin/python3
 '''
 SPDX-License-Identifier: MIT
 X-SPDX-Copyright-Text: Copyright (C) 2022, Advanced Micro Devices, Inc.
@@ -402,7 +402,7 @@ def main(args):
 if __name__ == '__main__':
     try:
         main(sys.argv[1:])
-    except (sc.SCError, ValueError), e:
+    except (sc.SCError, ValueError) as e:
         s = str(e)
         if 'ERROR:' not in s:
             s = 'ERROR: ' + s