removed encoding fix and added link for troubleshooting

dblp/README.md

@@ -51,3 +51,8 @@ Execute to sort the dataset by tree size.
 ```bash
 ./tidy-up.sh
 ```
+
+## Troubleshooting
+
+- Encoding
+In case of encoding error follow the steps on this webpage: [https://www.thomas-krenn.com/de/wiki/Perl_warning_Setting_locale_failed_unter_Debian](https://www.thomas-krenn.com/de/wiki/Perl_warning_Setting_locale_failed_unter_Debian).

dblp/dblp_to_bracket.py

@@ -32,7 +32,7 @@ dblp_data_tree = etree.parse('dblp-2017-11-01.xml', dblp_parser)
 root = dblp_data_tree.getroot()
 
 # Output files.
-dblp_bracket = open('dblp.bracket', mode='w', encoding="utf8")
+dblp_bracket = open('dblp.bracket', 'w')
 
 print("--- Processing each child of DBLP's root.")
 

dblp/random_lines.py

-import sys
 import random
+import sys
 
 number = int(sys.argv[1])
 filename = sys.argv[2]
 
-with open(filename, encoding='utf-8') as f:
+with open(filename) as f:
     lines = f.readlines()
 
 linestoprint = random.sample(range(len(lines)), number)
 
 for ln in linestoprint:
-    print(lines[ln].encode('utf8'), end='')
+    print(lines[ln], end='')