change to absolute path

src/materials.py

@@ -3,6 +3,9 @@
 """\
 Material database.
 """
+import sys
+import os
+
 __author__ = "Daniel Weschke"
 __copyright__ = "Copyright 2019 Daniel Weschke"
 __credits__ = ["Daniel Weschke"]
@@ -21,34 +24,34 @@ EPILOG = """\
 """
 
 
-def read_dir(dir, exclude=[]):
+def read_dir(directory, exclude=None):
   """\
   Read all files in directory as list
   """
-  from os import listdir
+  directory = os.path.join(os.path.abspath(os.path.dirname(__file__)), directory)
-
   result = []
-  for data in listdir(dir):
+  for data in os.listdir(directory):
     file_name = data.split('.')[0]
-    if file_name not in exclude:
+    if exclude is not None and file_name not in exclude:
       result.append(file_name)
   return result
 
 
-def print_list(list):
+def print_list(data_list):
   """\
   Print list
   """
-  for data in list:
+  for data in data_list:
     print(data.title())
 
 
-def read_file(input_file):
+def read_file(filename):
   """\
   Read file as string
   """
+  filename = os.path.join(os.path.abspath(os.path.dirname(__file__)), filename)
   try:
-    with open(input_file) as data_file:
+    with open(filename) as data_file:
       return data_file.read()
   except (OSError, IOError) as err:
     print(str(err))
@@ -105,7 +108,6 @@ def main():
   """\
   Main function
   """
-  from os import path
   import argparse
 
   parser = argparse.ArgumentParser(
@@ -145,11 +147,11 @@ def main():
     print(args)
 
   if args.command == 'list':
-    list = read_dir("./data", "INFO")
+    data_list = read_dir("data", "INFO")
-    print_list(list)
+    print_list(data_list)
 
   elif args.command == 'get':
-    filename = path.join('data', args.materialname + '.json')
+    filename = os.path.join('data', args.materialname.lower() + '.json')
     data = read_file(filename)
     if args.debug:
       print("filename: " + filename)
@@ -171,5 +173,4 @@ def main():
 
 
 if __name__ == "__main__":
-  import sys
   sys.exit(main())