Better error handling and output format (#6)

* Update readme: fix small redirection mistake

* Use one output line per password

* More graceful error handling

* Only catch UnicodeErrors

README.md

@@ -1,7 +1,6 @@
 # pwned-search
 Pwned Password API lookup
 
-
 - Required libaries:
 
 * requests: `pip install requests`
@@ -11,7 +10,7 @@ Usage:
 * `python pwned.py` – reads passwords from standard input;
 * `python pwned.py <[file-with-passwords]` – reads passwords from
   a file;
-* `another-command | python pwned.py <[file-with-passwords]` – reads
+* `another-command | python pwned.py` – reads
   passwords written to standard output by another command;
 * `python pwned.py [password]` – checks passwords given as command line
   arguments (beware the password may be saved in shell history and that
@@ -20,4 +19,3 @@ Usage:
 Thanks to those who fixed my dodgy code :)
 
 Have fun! Oh, and if you find one of your own passwords, change it asap!
-

pwned.py

@@ -22,6 +22,7 @@ def lookup_pwned_api(pwd):
     Raises:
         RuntimeError: if there was an error trying to fetch data from pwned
             database.
+        UnicodeError: if there was an error UTF_encoding the password.
     """
     sha1pwd = hashlib.sha1(pwd.encode('utf-8')).hexdigest().upper()
     head, tail = sha1pwd[:5], sha1pwd[5:]
@@ -39,13 +40,20 @@ def main(args):
     ec = 0
     for pwd in args or sys.stdin:
         pwd = pwd.strip()
+        try:
             sha1pwd, count = lookup_pwned_api(pwd)
+
             if count:
-            print("{} was found".format(pwd))
-            print("Hash {0}, {1} occurrences".format(sha1pwd, count))
+                foundmsg = "{0} was found with {1} occurrences (hash: {2})"
+                print(foundmsg.format(pwd, count, sha1pwd))
                 ec = 1
             else:
                 print("{} was not found".format(pwd))
+        except UnicodeError:
+            errormsg = sys.exc_info()[1]
+            print("{0} could not be checked: {1}".format(pwd, errormsg))
+            ec = 1
+            continue
     return ec