created a chiralyty script

gsym tsym -> gsym
install.rst updated to the new cosymlib module

docs/install.rst

@@ -15,5 +15,17 @@ for python3 ::
 the code will be installed as a python module. To check that it is properly installed you can
 run the :program:`python` interpret and execute ::
 
-   import symeess
+   import cosymlib
+
+Install via pip
+_______________
+
+If pip is already installed in your computer, you can download and install the cosymlib module as any other
+module in python ::
+
+    pip install cosymlib --user
+
+for python3 ::
+
+    pip3 install cosymlib --user
 

scripts/chirality

@@ -0,0 +1,108 @@
+#!/usr/bin/env python
+from cosymlib import Cosymlib, __version__
+from cosymlib.file_io.tools import print_header, print_footer, print_input_info
+from cosymlib.file_io import read_generic_structure_file
+import argparse
+import sys
+import yaml
+
+
+# positional arguments
+parser = argparse.ArgumentParser(description='gsym')
+
+# positional arguments
+parser.add_argument(type=str,
+                    dest='input_file',
+                    nargs='?', default=None,
+                    help='input file with structures')
+parser.add_argument(type=str,
+                    dest="yaml_input",
+                    nargs='?', default=None,
+                    help='input file with keywords')
+# Main options
+parser.add_argument('-m', '--measure',
+                    dest='measure',
+                    metavar='SG',
+                    default=False,
+                    help='compute the SG symmetry measure of the input structures')
+parser.add_argument('-o', '--output',
+                    dest='output_name',
+                    metavar='filename',
+                    default=None,
+                    help='store output into a file')
+parser.add_argument('-c', '--central_atom',
+                    action='store',
+                    dest='central_atom',
+                    metavar='N',
+                    type=int,
+                    default=0,
+                    help='central atom is in position N in the input structure')
+
+# Extra options
+parser.add_argument('--info',
+                    action='store_true',
+                    default=False,
+                    help='print information about the input structures')
+parser.add_argument('-v', '--version',
+                    dest='version',
+                    action='store_true',
+                    default=False,
+                    help='print information about the input structures')
+
+# Modifiers
+parser.add_argument('--center',
+                    dest='center', metavar='R',
+                    type=float,
+                    default=None,
+                    nargs=3,
+                    help='fix coordinates x,y,z for the center of symmetry operations (Angs)')
+
+args = parser.parse_args()
+
+if args.yaml_input:
+    with open(args.yaml_input, 'r') as stream:
+        input_parameters = yaml.load(stream, Loader=yaml.FullLoader)
+
+    for key, value in input_parameters.items():
+        if key.lower() in args:
+            setattr(args, key.lower(), value)
+        else:
+            raise KeyError("Key %s is not valid" % key)
+
+if args.version:
+    print('Cosymlib version = {}'.format(__version__))
+    exit()
+
+common_output = open(args.output_name, 'w') if args.output_name is not None else sys.stdout
+print_header(common_output)
+
+try:
+    structures = read_generic_structure_file(args.input_file, read_multiple=True)
+except Exception as e:
+    sys.exit('No input file selected! An existing file must be provide')
+
+
+structure_set = Cosymlib(structures)
+
+if args.info:
+    print_input_info(structure_set.get_geometries(), output=common_output)
+    exit()
+
+# if not args.measure:
+#     reference = ['ci', 'cs']
+# elif args.measure not in ['ci', 'cs']:
+#     reference = ['ci', 'cs', args.measure]
+# else:
+#     reference = args.measure
+if not args.measure:
+    sys.exit('User should provide a symmetry group measure')
+reference = args.measure.lower()
+
+# Symgroup commands
+if args.measure:
+    structure_set.print_geometric_symmetry_measure(reference,
+                                                   central_atom=args.central_atom,
+                                                   center=args.center,
+                                                   output=common_output)
+
+print_footer(common_output)

scripts/gsym

@@ -8,7 +8,7 @@ import sys
 import yaml
 
 
-parser = argparse.ArgumentParser(description='tsym')
+parser = argparse.ArgumentParser(description='gsym')
 
 # positional arguments
 parser.add_argument(type=str,