I'm a very, very n00b developper learning Python at university (I started a few weeks ago really) and I'm on my first assignment. Everything's going well, except one thing and i just can't figure it out. Or rather, I know what the problem is, but I can't find the solution. In short, I need to ask the user to input a number, and if number is 0, then the programs shows a message and stops there. Otherwise, it goes on with asking more info and uses For loops. My question is: How do I insert lines that are not part of the IF (user has entered 0) but also not part of any For loops (i don't want these lines repeated). I'm not sure if that makes any sense.
python code
basically i want the last print to be shown if the user has entered more than 0 in the beginning, but not be shown if the user has entered 0. I'm not showing the actual code, since it's a uni assignment, but the screenshot shows exactly the issue I'm having with the real code :) Thanks for your help!! (also, sorry that it's actually a link, because i don't have enough points yet to embed the image).
This one is pretty easy. Im not that great at python yet but i just tested it and it works as intended.
def isZero(val):
if val==0:
print('bye')
quit()
title = int(input('enter a number'))
ZeroCheck = isZero(title)
while title>0:
title = int(input('enter a number'))
isZero(title)
Related
I'm an ABAP programmer and I was asked to make a minor modification to an IPL label.
Easily done, but now I was tasked to fix a long running error within said label.
I know nothing about IPL and the lack of a online viewer makes everything worse...
The problem is that "tabulation" right in the middle of a text (I underlined it in blue on the Label's pic).
I checked the code and there's nothing there that should make that tabulation appear.
I spent a whole month reading manuals and trying to fix it, but nothing changes...
Here's the code and the resulting label:
<STX>R<ETX>
<STX><ESC>C<SI>W791<SI>h<ETX>
<STX><ESC>P<ETX>
<STX>F*<ETX>
<STX>H1;f3;o220,52;c34;b0;h2;w1;d3,300052947-FANDANGOS PRESUNTO 140GX14 LD<ETX>
<STX>H2;f3;o130,52;c33;b0;h1;w1;d3,Val:<ETX>
<STX>H3;f3;o130,204;c34;b0;h1;w1;d3,QTD.Unidade:<ETX>
<STX>H4;f3;o90,33;c34;b0;h0;w1;d3,16/08/21<ETX>
<STX>H5;f3;o90,302;c34;b0;h1;w1;d3,14<ETX>
<STX>B6;f3;o375,44;c2,0;w6;h102;r0;d3,17892840816329<ETX>
<STX>H7;f3;o275,44;c26;b0;h17;w17;d3,17892840816329<ETX>
<STX>H8;f3;o130,490;c34;b0;h0;w1;d3,Lote:<ETX>
<STX>B9;f3;o090,600;c2,0;w2;h45;r0;d3,0005218177<ETX>
<STX>H10;f3;o130,600;c34;b0;h0;w1;d3,0005218177<ETX>
<STX>D0<ETX>
<STX>R<ETX>
<STX><SI>l13<ETX>
<STX><ESC>E*,1<CAN><ETX>
<STX><RS>1000<US>1<ETB><ETX>
Label
Can you guys help me, please??
Edit: Just to make it clear, I did that blue line on that image to show what's the problem.
Here are some tests I did by changing the data:
Test1
Test2
The error always appear at the same point in the label, as long as there's a space in that text.
Have you looked at the raw data of the output? Is it POSSIBLE that what looks like a space is actually some special character that is making IPL choke blue? Because it is literally the 1 character between the "O" and "1". For grins, you might also try to change the character in the data to a "-" just for purposes of confirming data context. It might even just be a TAB character.
I have done IPL years ago and have actually gone to the point of defining a pre-defined label template and generating output that says to use template X (whatever # I created as),and pass the data along that fills into the respective fields.
A final option I would throw in is this. Take the sample output you have and just force sample data into each of the output areas. So, instead of your literal data, put fake data in similar context just to see if it is data specific or other. Such as
<STX>H1;f3;o220,52;c34;b0;h2;w1;d3,300052947-FANDANGOS PRESUNTO 140GX14 LD<ETX>
becomes
<STX>H1;f3;o220,52;c34;b0;h2;w1;d3,123456789-TESTING-SAMPLEDATA-123XY12-AB<ETX>
Notice same context of data, but no spaces and using dash "-" just for testing. Is there something special about the actual data. This is a good way I have done historically for similar strangeness early on doing IPL labels.
User decided to not spend anymore time on this issue, so now I'm unable to further test the label.
Unfortunately this problem will go unsolved for now. Hope I get another chance to fix this and learn more about IPL.
Thanks you so much for your answers!
For a school project I am attempting to write what is described as an "interactive diagnosis environment" using prolog. The user will enter a symptom, and a list of diseases that match the symptom will be printed to the screen. The user will then list another symptom, and diseases will be removed from the previous list if they do not match the second symptom, forming a new list. The new list is then printed.
example user input:
SYMPTOM_IN(fever, 150).
SYMPTOM_IN(vomiting, 1).
A list of possible diseases is printed after each input.
This process is repeated until a diagnosis is made or until it is somehow determined that it can't, at which point tests will be suggested and the user can input data regarding the tests in a similar manner, ultimately arriving at a diagnosis.
So far, all I have is a list of facts that will compile and that I can then interact with, but I really don't understand how I am supposed to carry over the list of diseases from one input to the next. I also don't understand how to move from taking symptom input to suggesting tests, although maybe that will be evident once I understand how to do the symptom input portion.
I would really appreciate any help.
Thanks.
EDIT:
Could I take the two values from the SYMPTOM_IN call, use them to do something like symptom(X, fever, 150)., and assert the output from that to store it (like in the answer to this question)? Then maybe I can do the same thing for the next call and take the union of the two lists?
You want to create an expert system. There is a lot of info about it on the net. For example:
https://www.csupomona.edu/~jrfisher/www/prolog_tutorial/2_17.html
http://www.amzi.com/ExpertSystemsInProlog/02usingprolog.php
There is also a lot of good info on Stack Overflow.
In short: you need to know how to use assert and retract in proper way.
So I am not very good with computers and have to create my first app for a project. It's going fine so far - essentially I am trying to create an app that records and saves data. Right now I'm still getting the record part down, since Xcode is having periodic issues. I am using this link for setting up the code:
http://www.techotopia.com/index.php/Recording_Audio_on_iOS_7_with_AVAudioRecorder
Unfortunately, I am running into 2 types of semantic errors, two red, two yellow. They are all in RecordModelController.m - the first is like this:
return [self.pageData indexOfObject:viewController.dataObject];
Xcode claims that Property 'dataObject' isn't found in any object or forward class in 'RecordDataViewController'. That's actually my two red errors, they just sound very similar so I paraphrased them into one. The yellow error, however, repeats itself twice on the same line of code, which is:
return [self viewControllerAtIndex:index storyboard:viewController. storyboard];
The yellow issues on these lines of code (again, repeated twice) is "Incompatible pointer types returning 'RecordDataViewController *' from a function with result type 'UIViewController *'" - I genuinely tried to look in RecordDataViewController.h and couldn't make sense of this. Like I said, bad with computers, not sure why I'm having this issue, and I know that it's probably something basic.
If anyone would be willing to help me out with how to deal with issues like this, that would be great. Thanks, and sorry for my incompetence.
The red are called errors. The yellow are called warnings. I'm going to suggest you look at a few beginning Xcode/iOS programming tutorials so you understand the basic concepts of how view controllers, arrays, etc. work in objective-c. The best place to start for someone completely new as yourself is here: http://www.raywenderlich.com/tutorials
Hope this helps!
Um so I was in for a little bit of a surprise tonight. I spent a good 20 mins trying to figure out why I was able to submit a form knowing that what I entered into the recaptcha field was invalid. Is it true that you don't need to input the exact words it displays? If it shows me two words and I misspelled one of the words, I still pass validation? Same goes if "hello world" and I input "hell man" it still works.
With recaptcha, you are only tested on one of the words, while the other is used to help computers in scanning printed material. So you only need to get one right to pass (which one you need is random). :D
the recaptcha site describes why this is. You need to get one of the two words correct; only recaptcha knows which one.
But if a computer can't read such a
CAPTCHA, how does the system know the
correct answer to the puzzle? Here's
how: Each new word that cannot be read
correctly by OCR is given to a user in
conjunction with another word for
which the answer is already known. The
user is then asked to read both words.
If they solve the one for which the
answer is known, the system assumes
their answer is correct for the new
one. The system then gives the new
image to a number of other people to
determine, with higher confidence,
whether the original answer was
correct.
I am trying to write a script that does a zip code look up at the USPS.
URL="http://zip4.usps.com/zip4/citytown_zip.jsp". The data gets submitted by POST is:
zip5=YOURZIPCODE&submit.x=3&submit.y=22&submit=Find+ZIP+Code
The part I am having a hard time finding is how these numbers get generated:
submit.x=3
submit.y=22
The above two always "submit" values for X and Y always change. I can figure out
those number get put into the string.
Any thoughts would be greatly appreciated.
Those are the coordinates for a image-button click. Their values just give the mouse position on the button when it was clicked. In this case, they are going to be meaningless, just make them both 1 or something.
"Users may view and download material from this site only for the following purposes: (a) for personal, non-commercial home use"
http://www.usps.com/homearea/docs/termsofuse.htm?from=global_footer&page=termsofuse
From the link above.
As the first answer says, that is just the USPS trying to keep anyone from building an automated script to access data through that form. They expect slightly different numbers for each request from a given IP address.
"when you can prevent someone from doing something, you can get paid to allow them to get things done"
Just put in random numbers between 1 and the max size of the image button and it will work.
And I would not bother trying to do it "legally", their legal terms make no sense:
http://techref.massmind.org/techref/ecommerce/shipAPIlegal.htm also see the "Shipping" link in the heading for that page.