Can't figure out if/else syntax in Python -


i've decided learn how program, , because it's recommended first, i've started working out python. i've learned think basics, figuring out if/else statements. thought little challenge might try apply things i've learned , whip little program did something. i'm trying make script can read file or find if specific word in file, giving user choice. here's code wrote, , isn't working.

print "hello, read file or find  whether or not text in file?" choice = raw_input("type 'read' or 'find' here --> ")  if choice == "read":     readname = raw_input("type filename of file want read here -->"     print open(readname).read() elif choice == "find":     word = raw_input("type word want find here --> ")     findname = raw_input("type filename of file want search here --> ")     if word in open(findname).read():         print "the word %r in file %r" % (word, filename)     else:         print "the word %r not in file %r" % (word, filename) else:     print "sorry,  don't understand that."

i'm total scrub , tell looking @ code, anyway appreciated. firstly, python giving me syntax error right on print. doesn't give me error when mark out variable line above it, suppose there's problem there, can't find in internet. also, if mark out variable line said type "find" when run (running elif portion) error saying findname isn't defined, can't find why wouldn't? anyway, i'm sure it's blatantly obvious hey, i'm learning, , i'd love if of tell me why code sucks :)

in addition missing parentheses noted other answer, have problem here:

findname = raw_input("type filename of file want search here --> ") if word in open(findname).read():     print "the word %r in file %r" % (word, filename) else:     print "the word %r not in file %r" % (word, filename)

that is, define findname later try use filename, hasn't been defined.

i have couple suggestions might want into:

  • use tool flake8 give suggestions regarding code (this try ensure code complies pep8, python coding style guideline. though won't catch every error in code.)
  • try using ide real-time feedback on code. there many available; prefer pycharm.

here's example of flake8's output:

$ flake8 orig.py orig.py:1:80: e501 line long (92 > 79 characters) orig.py:5:80: e501 line long (82 > 79 characters) orig.py:6:10: e901 syntaxerror: invalid syntax orig.py:9:80: e501 line long (86 > 79 characters) orig.py:16:1: w391 blank line @ end of file orig.py:17:1: e901 tokenerror: eof in multi-line statement

Comments

Post a Comment

Popular posts from this blog

html - Outlook 2010 Anchor (url/address/link) -

i'm trying link specific pdf page msoutlook'10 or msword'10, #page=... anchor particularly useful , works fine elsewhere. unfortunately when click [ctr-k] in outlook or winword, links re-formatted assuming unc path. pdf file located on shared drive. using "file:" prefix links open pdf in adobe reader (outside of browser), , "http:" open inside browser. issue seem need open in browser "file:" prefix in order anchor work. know anchors work inside browser. outlook uses windows/explorer default program (based on file extension) seems open in adobe reader neglecting anchor. is aware of solution, link specific page or bookmark of shared-pdf ms outlook and/or winword link? common references: mailermailer.com/...anchor-tags-html-emails campaignmonitor.com/...anchor-links-in-email-newsletters/ stackoverflow.com/...anchor-in-pdf-document
Read more

javascript - Why does running this loop 9 times take 100x longer than running it 8 times? -

consider code: test = function() { } t = new test(); (var = 0; < 8; i++) { result = t instanceof test; } if change number of iterations 8 9 , loop take 100 times longer complete in latest version of firefox (41.0.1). tested on 2 different pcs , magic limit 8. here jsperf test used: http://jsperf.com/instanceof-8-times-vs-9-times does have idea why might happen? seems specific instanceof . not happen if else object, example check property. note: filed bugzilla bug this. jan de mooij mozilla team has posted details in bugzilla thread . here's simplistic interpretation of highly technical answers: in i < 8 case, firefox smart enough hoist result = t instanceof test; statement out of loop (according tests, doesn't seem omit altogether). in i < 9 case, apparently doesn't optimization . why? reason not clear, related fact 9 iterations threshold above function considered "hot" enough run through jit compiler. i < 8 cas...
Read more

Getting gateway time-out Rails app with Nginx + Puma running on Digital Ocean -

following this guide setup app on digital ocean droplet, not working. site not loading , it's throwing: "gateway time-out". the puma server works, since ps aux | grep puma prints: root 15878 0.0 0.4 376832 2168 ? sl 12:50 0:00 puma 2.13.4 (unix:///var/www/myapp/shared/tmp/sockets/myapp-puma.sock) [20150930164940] root 15881 0.0 0.7 903676 3692 ? sl 12:50 0:06 puma: cluster worker 0: 15878 [20150930164940] root 24654 0.0 0.1 11748 916 pts/2 s+ 18:00 0:00 grep --color=auto puma my nginx config: user root; worker_processes 1; events { worker_connections 1024; } http { upstream puma { server unix:///var/www/myapp/shared/tmp/sockets/myapp-puma.sock; } server { listen 80; server_name myapp.com; root /var/www/myapp/current/public; access_log /var/www/myapp/current/log/access.log; error_log /...
Read more