commit 7b1494b265f47fc0ea2f644c3417a14830fcaf82
Author: vivekvardhanadepu <vivekvicky839@gmail.com>
Date:   Sun Jul 11 21:21:50 2021 +0530

    Scripts fixup

diff --git a/scripts/extract-freq-lexicon.py b/scripts/extract-freq-lexicon.py
index 3534ac6..ef7b427 100755
--- a/scripts/extract-freq-lexicon.py
+++ b/scripts/extract-freq-lexicon.py
@@ -4,6 +4,7 @@
 
 import sys
 import common
+import traceback
 
 # Read the corpus, make a note of all ambiguous words, their frequency and their possible translations
 
@@ -69,6 +70,7 @@ def extract_freq_lexicon(canditates):
                                     tlword = cur_tl_row[al_tl]
                                 else:
                                     tlword = cur_tl_row[-1]
+                                    traceback.print_stack()
                                     print("alignment out",
                                           "of",
                                           "range", al_tl,
@@ -77,6 +79,7 @@ def extract_freq_lexicon(canditates):
                                           cur_tl_row,
                                           ")",
                                           file=sys.stderr)
+                                    exit(1)
                                 slword = slword
                                 if slword not in sl_tl:  # {
                                     sl_tl[slword] = {}
@@ -107,9 +110,10 @@ def extract_freq_lexicon(canditates):
                 # }
 
                 cur_line = cur_line + 1
-            except Exception as e:
-                print("Error in line", lineno, ":", e, file=sys.stderr)
-                sys.exit(-1)
+            except Exception:
+                # print("Error in line", lineno, ":", e, file=sys.stderr)
+                traceback.print_exc()
+                exit(1)
         # }
     # }
 
@@ -142,7 +146,7 @@ def extract_freq_lexicon(canditates):
 
 if __name__ == '__main__':
     if len(sys.argv) < 2:  # {
-        print('extract-freq-lexicon.py <candidate sent>')
+        print('Usage: extract-freq-lexicon.py <candidate sent>', file=sys.stderr)
         exit(1)
     # }
     extract_freq_lexicon(sys.argv[1])
diff --git a/scripts/extract-sentences.py b/scripts/extract-sentences.py
index 8d7ee06..c80f77b 100755
--- a/scripts/extract-sentences.py
+++ b/scripts/extract-sentences.py
@@ -23,21 +23,19 @@ def ambiguous(bt):  # {
 
 
 def extract_sentences(phrase_table_file, biltrans_out_file):
-    reading = True
     lineno = 0
     total_valid = 0
     total_errors = 0
 
     not_ambiguous = []
     with open(phrase_table_file) as phrase_table, open(biltrans_out_file) as biltrans_out:
-        while reading:  # {
+        while True:  # {
             try:
                 lineno = lineno + 1
                 pt_line = phrase_table.readline().strip()
                 bt_line = biltrans_out.readline().strip()
 
                 if not bt_line.strip() and not pt_line.strip():  # {
-                    reading = False
                     break
                 elif not bt_line.strip() or not pt_line.strip():  # {
                     continue
@@ -83,8 +81,7 @@ def extract_sentences(phrase_table_file, biltrans_out_file):
                 print(lineno, '\t' + bt_line)
                 print(lineno, '\t' + row[0])
                 print(lineno, '\t' + row[2])
-                print(
-                    '-------------------------------------------------------------------------------')
+                print('-'*(len(bt_line)+5))
                 total_valid += 1
             except Exception as e:
                 print("Error in line", lineno, ": ", e, file=sys.stderr)
@@ -102,7 +99,7 @@ def extract_sentences(phrase_table_file, biltrans_out_file):
 
 if __name__ == '__main__':
     if len(sys.argv) < 3:  # {
-        print('extact-sentences.py <phrasetable> <biltrans>')
+        print('Usage: extact-sentences.py <phrasetable> <biltrans>', file=sys.stderr)
         exit(1)
     # }
 
diff --git a/scripts/lambdas-to-rules.py b/scripts/lambdas-to-rules.py
index d02b87f..745c7c7 100644
--- a/scripts/lambdas-to-rules.py
+++ b/scripts/lambdas-to-rules.py
@@ -83,7 +83,7 @@ def lambdas_to_rules(freq_lexicon, rules):
 
 if __name__ == '__main__':
     if len(sys.argv) < 3:  # {
-        print('lambdas-to-rules.py <lex> <rules>')
+        print('Usage: lambdas-to-rules.py <lex> <rules>', file=sys.stderr)
         exit(1)
     # }
     lambdas_to_rules(sys.argv[1], sys.argv[2])
diff --git a/scripts/merge-ngrams-lambdas.py b/scripts/merge-ngrams-lambdas.py
index 1595d26..3ceb065 100644
--- a/scripts/merge-ngrams-lambdas.py
+++ b/scripts/merge-ngrams-lambdas.py
@@ -47,7 +47,7 @@ def merge_ngrams_lambdas(ngf, ldf):
 
 if __name__ == '__main__':
     if len(sys.argv) < 3:  # {
-        print('merge-ngrams-lambdas.py <ngrams> <lambdas>')
+        print('Usage: merge-ngrams-lambdas.py <ngrams> <lambdas>', file=sys.stderr)
         exit(1)
     # }
     merge_ngrams_lambdas(sys.argv[1], sys.argv[2])
diff --git a/scripts/ngram-count-patterns-maxent2.py b/scripts/ngram-count-patterns-maxent2.py
index 693fc82..c3a9714 100755
--- a/scripts/ngram-count-patterns-maxent2.py
+++ b/scripts/ngram-count-patterns-maxent2.py
@@ -269,7 +269,8 @@ def ngram_count_patterns(freq_lexicon, candidates):
 
 if __name__ == '__main__':
     if len(sys.argv) not in [3, 4]:  # {
-        print('count-patterns.py <lex> <extracted> [threshold]')
+        print(
+            'Usage: count-patterns.py <lex> <extracted> [threshold]', file=sys.stderr)
         exit(1)
     # }
 
diff --git a/scripts/ngrams-to-rules-me.py b/scripts/ngrams-to-rules-me.py
index 87d0fad..ded1119 100755
--- a/scripts/ngrams-to-rules-me.py
+++ b/scripts/ngrams-to-rules-me.py
@@ -177,7 +177,7 @@ def ngrams_to_rules(ngrams):
 
 if __name__ == '__main__':
     if len(sys.argv) < 2:  # {
-        print('ngrams-to-rules.py <ngrams>')
+        print('Usage: ngrams-to-rules.py <ngrams>', file=sys.stderr)
         exit(1)
     # }
     ngrams_to_rules(sys.argv[1])