Forums: » Register « |  Free Tools |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support |
 User Name: Password: Remember me

New Free Tools on Dev Shed!
We're Excited to announce that Dev Shed now has 70 free tools on the site. To learn more, click here!

 Dev Shed Forums Sponsor:
#1
November 28th, 2012, 09:50 PM
 brod615
Registered User

Join Date: Nov 2012
Posts: 6
Time spent in forums: 1 h 58 m 52 sec
Reputation Power: 0
Trouble writing a Python Program

I need help with writing a python code to print out a students letter grade. It seems to be fairly simple, but I am new to this and I am really struggling.

The ranges are, A is 100 - 90, B is 89 - 80, C is 79 - 70, D is 69 - 61 and F is 60 or lower.

Currently I have this but, no clue if it is right or even going in the right direction

def main():
y = input("Enter the exam score between 0 and 100")
if y >= 90 print: "A"
if y <= 89 but >= 80 print: "B"
if y <= 79 but >= 70 print: "C"
if y <= 69 but >= 61 print: "D"
if y <= 60 print: "f"

Thank you, I really appreciate any help.

#2
November 28th, 2012, 09:59 PM
 b49P23TIvg
Contributing User

Join Date: Aug 2011
Posts: 4,217
Time spent in forums: 1 Month 3 Weeks 2 Days 18 h 35 m 4 sec
Reputation Power: 455
Most of all, run your program in the python interpreter. You'd learn that "but" isn't recognized by python.

python has unusual comparisons, you can actually write the comparison as

if 80 <= y <= 89: print "B"

then furthermore you can use a chain of
Code:
```if condition:
statements
elif another_condition:
statements
else:
print'F'#ailure```

Needless to say, this is a more efficient technique because your computer doesn't need to make as many comparisons.

Note: python is the only language I know for which comparison strings longer than a single comparison of less-than greater-than evaluate as they would algebraically. (I don't know ruby.)
__________________
[code]Code tags[/code] are essential for python code!

#3
November 29th, 2012, 09:56 AM
 brod615
Registered User

Join Date: Nov 2012
Posts: 6
Time spent in forums: 1 h 58 m 52 sec
Reputation Power: 0
Quote:
 Originally Posted by b49P23TIvg Most of all, run your program in the python interpreter. You'd learn that "but" isn't recognized by python. python has unusual comparisons, you can actually write the comparison as if 80 <= y <= 89: print "B" then furthermore you can use a chain of Code: ```if condition: statements elif another_condition: statements else: print'F'#ailure``` Needless to say, this is a more efficient technique because your computer doesn't need to make as many comparisons. Note: python is the only language I know for which comparison strings longer than a single comparison of less-than greater-than evaluate as they would algebraically. (I don't know ruby.)

I ended up using elif statements and got it to work, dont know why I tried to use "but". Thanks for your help

 Viewing: Dev Shed Forums > Programming Languages > Python Programming > Trouble writing a Python Program

## Developer Shed Advertisers and Affiliates

 Thread Tools Search this Thread Search this Thread: Advanced Search Display Modes Rate This Thread Linear Mode Rate This Thread: 5 : Excellent 4 : Good 3 : Average 2 : Bad 1 : Terrible

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off
 View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox Forum Jump Please select one User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home -------------------- Programming Languages    PHP Development        PHP FAQs and Stickies    Perl Programming        Perl FAQs and Stickies    C Programming        C Programming FAQs and Stickies    Java Help        Java FAQs    Python Programming        Python Programming FAQs    Ruby Programming        Ruby Programming FAQs    Game Development        Game Development FAQs Programming Languages - More    ASP Programming        ASP Programming FAQs    .Net Development        .Net Development FAQs    Visual Basic Programming        Visual Basic Programming FAQs    Software Design        Software Design FAQs    ColdFusion Development        ColdFusion Development FAQs    Delphi Programming        Delphi Programming FAQs    Regex Programming        Regex Programming FAQs    XML Programming        XML Programming FAQs    Other Programming Languages        Other Programming Languages FAQs Web Design    HTML Programming        HTML Programming FAQs    JavaScript Development        JavaScript Development FAQs    CSS Help        CSS Help FAQs    Flash Help        Flash Help FAQs    Photoshop Help        Photoshop Help FAQs    Web Design Help        Web Design Help FAQs    Website Critiques        Website Critiques FAQs    Search Engine Optimization        Search Engine Optimization FAQs Mobile Programming    Mobile Programming        Mobile Programming FAQs    iPhone SDK Development        iPhone SDK Development FAQs    Android Development        Android Development FAQs    BlackBerry Development        BlackBerry Development FAQs Web Site Management    Business Help        Business Help FAQs    Development Software        Development Software FAQs    Scripts        Scripts FAQs Databases    Database Management        Database Management FAQs    DB2 Development        DB2 Development FAQs    MySQL Help        MySQL Help FAQs    PostgreSQL Help        PostgreSQL Help FAQs    Firebird SQL Development        Firebird SQL Development FAQs    MS SQL Development        MS SQL Development FAQs    Oracle Development        Oracle Development FAQs    LDAP Programming        LDAP Programming FAQs System Administration    Mail Server Help        Mail Server Help FAQs    Apache Development        Apache Development FAQs    Security and Cryptography        Security and Cryptography FAQs    Antivirus Protection        Antivirus Protection FAQs    DNS        DNS FAQs    IIS        IIS FAQs    Networking Help        Networking Help FAQs    FTP Help        FTP Help FAQs Operating Systems    BSD Help        BSD Help FAQs    Linux Help        Linux Help FAQs    UNIX Help        UNIX Help FAQs    Windows Help        Windows Help FAQs    Mac Help        Mac Help FAQs Web Hosting    Web Hosting        Web Hosting FAQs    Free Web Hosting        Free Web Hosting FAQs    Web Hosting Requests        Web Hosting Requests FAQs    Web Hosting Offers        Web Hosting Offers FAQs Computer Hardware    Computer Hardware    CPUs        CPUs FAQs    Cooling        Cooling FAQs    Embedded Programming        Embedded Programming FAQs    Motherboards        Motherboards FAQs    Multimedia Hardware        Multimedia Hardware FAQs Other    Dev Shed Lounge        Dev Shed Lounge FAQs    Development Articles        Development Articles FAQs    Beginner Programming        Beginner Programming FAQs    Hire A Programmer        Hire A Programmer FAQs    Project Help Wanted        Project Help Wanted FAQs Latest News Updated Hourly    Technology News    Business News    Science News Forum Information    Forum Rules/Guidelines        Forum Rules/Guidelines FAQs    Forum Announcements        Forum Announcements FAQs    Dev Shed Gaming Center        Go to the Dev Shed Battle Arena        Go to the Dev Shed Arcade Games        Go to the Legend of the Green Dragon    Suggestions & Feedback        Suggestions & Feedback FAQs

 Forums: » Register « |  Free Tools |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support |