add argument parsing, fix program logic

[phrases.git] / phrases.py

diff --git a/phrases.py b/phrases.py
index d1d934f2e324d9bf0cabd2b834e22d1103af8f1a..63199d141d996cccc70d160ad3f71438f2909a32 100755 (executable)
--- a/phrases.py
+++ b/phrases.py
@@ -3,52 +3,84 @@
 # Armaan Bhojwani 2020
 
 import argparse
+import csv
 import random
 import sys
-import csv
 
 def main(args=sys.argv[1:]):
     # Argument parsing
-    parser = argparse.ArgumentParser(description="Latin famous phrases in the terminal.")
-    parser.add_argument("-e", "--english", action='store_true', help="Print the English translation.")
-    parser.add_argument("-i", "--id", action='store_true', help="Print the id of the phrase.")
-    parser.add_argument("-l", "--latin", action='store_true', help="Print the Latin phrase (default)")
-    parser.add_argument("-m", "--min", default=0, type=int, help="Set the minimum length of the Latin phrase")
-    parser.add_argument("-M", "--max", default=10000000, type=int, help="Set the maximum length of Latin phrase")
-    parser.add_argument("-n", "--notes", action='store_true', help="Print any notes on phrase")
+    parser = argparse.ArgumentParser(
+        description="Latin famous phrases in the terminal.")
+    parser.add_argument("-i", "--id",
+                        action='store_true',
+                        help="print the id of the phrase.")
+    parser.add_argument("-l", "--latin",
+                        action='store_true',
+                        help="print the Latin phrase (default)")
+    parser.add_argument("-e", "--english",
+                        action='store_true',
+                        help="print the English translation.")
+    parser.add_argument("-n", "--notes",
+                        action='store_true',
+                        help="print any notes on phrase")
+    parser.add_argument("-m", "--min",
+                        default=0,
+                        type=int,
+                        help="set the minimum length of the Latin phrase")
+    parser.add_argument("-M", "--max",
+                        default=10000000,
+                        type=int,
+                        help="set the maximum length of Latin phrase")
+    parser.add_argument("-p", "--num",
+                        action='store_true',
+                        help="print number of possibilities within constraints")
+    parser.add_argument("-f", "--file",
+                        default="/usr/share/phrases/phrases.csv",
+                        help="set the location of the phrase file")
     args = parser.parse_args()
 
     right_length = []
 
-    # Find phrases of the right size
-    with open('/usr/share/phrases/phrases.csv') as f:
+    # convert csv file into list
+    with open(args.file) as f:
         reader = csv.reader(f)
-        all_lines = list(reader)
         next(reader, None) # skip header
-        for row in all_lines:
-            try:
-                if args.max >= int(row[4]) >= args.min: # generate a shortlist of phrases of the right length
-                    right_length.append(row[0])
-            except:
-                pass # skip malformed rows
-
-        try:
-            chosen = int(right_length[random.randint(0, len(right_length) - 1)]) # choose a random id from the shortlist
-        except:
-            sys.exit("No phrase within the given parameters!")
-
-        # Output as specified in flags
-        if not (args.english or args.latin or args.notes):
-            print(all_lines[chosen][1])
-        else:
-            if args.id:
-                print(all_lines[chosen][1])
-            if args.latin:
-                print(all_lines[chosen][1])
-            if args.english:
-                print(all_lines[chosen][2])
-            if args.notes:
-                print(all_lines[chosen][3])
+        all_lines = list(reader) 
+    f.close()
+
+    # iterate through all the phrases
+    for row in all_lines:
+        try: # generate a shortlist of phrases of the right length
+            if args.max >= int(row[4]) >= args.min:
+                right_length.append(row[0])
+        except: # skip malformed rows without exiting
+            pass
+
+    try: # choose a random id from the shortlist
+        chosen = int(right_length[random.randint(0, len(right_length) - 1)])
+    except:
+        sys.exit("No phrase within the given parameters!")
+
+    # Output as specified in flags
+    for row in all_lines:
+        if int(row[0]) == chosen:
+            if not (args.id
+                    or args.latin
+                    or args.english
+                    or args.notes
+                    or args.num):
+                print(row[1])
+            else:
+                if args.id:
+                    print(row[1])
+                if args.latin:
+                    print(row[1])
+                if args.english:
+                    print(row[2])
+                if args.notes:
+                    print(row[3])
+                if args.num:
+                    print(len(right_length))
 
 if __name__ == "__main__":
     main()