I managed to get the output file and input file working.
The output works fine but the input does not. It simply exits the
program. No crash. Exits.It DOES NOT WAIT FOR ME TO TYPE IN THE
inputfile.txt
here is the program in all.
I have attached the whole program if you think that will help.
if __name__ == '__main__':
## menna me kaalla to change the output path
p = os.getcwd()
outfile = "\output_file.txt"
infile = "\input_file.txt"
outfilepath = p + outfile
infilepath = p + infile
sys.stdout = open(outfilepath, "w+")
sys.stdin = open(infilepath, "w+")
os.startfile(outfilepath)
os.startfile(infilepath)
##--------------------------------------------
for i in data.info <http://data.info>: # print all the scale info
to window
print i
run = True
while run:
scaletemplate = ["C", "D", "E", "F", "G", "A", "B"]
## menna input ganna thana
getscale = sys.stdin.readline()
raw_input("Which scale do you require?:")
##---------------------------------------
print getscale
if len(getscale) > 1:
getscale = getscale[0].upper() + getscale[1:]
else:
getscale = getscale.upper()
if getscale in data.scalenames:
scale = main(getscale)
print scale
elif getscale == "Q" or getscale == "X" or getscale == "":
run = False
print"exiting..."
else:
print "No such scale"
On Mon, Dec 8, 2014 at 8:49 AM, diliup gabadamudalige
<dili...@gmail.com <mailto:dili...@gmail.com>> wrote:
I do not need to save any info in the text files opened for stdout
and stdin.
The text files are empty files used only for Python output or Input.
I only need to use them as standard output and input.
I do not need to both above in the same file.
They may be in two different files.
after the user gets his answers from the program, on exit the
files may be closed without saving.
Sorry for not adding the above in the previous email.
Thank you again.
On Mon, Dec 8, 2014 at 8:41 AM, diliup gabadamudalige
<dili...@gmail.com <mailto:dili...@gmail.com>> wrote:
Dear Allen,
:)
Thank you very much for the responses but some things have
been totally misunderstood here. :)
1.What I want to do is to redirect the output of the program
to a text file instead of the standard Python output. That is
why I opened the text file. That part of the program works fine.
2. data is a py file named data.py which holds all the text I
need to be printed to the console. As it is an explanation of
music theory and will be large i have put it into a separate
file which is loaded as a module at the begining of the
program. hence data.info <http://data.info> which is a list of
strings which are printed to the scree. Hence in my program I
open a text file and send the print out put to that which is
then printed to the text file. This works too.
3. When I ask for input in python the prompt which is usually
in the Python output console waits for the user input and
returns that as a string.
4.Insted of 3 above I would like the user to be able to type
into a text file which may be opened by the program to collect
input. For instance i open a text file named
give_me_your_input.txt and then the user types his requirement
in that text file which is taken as a string by the program
which in turn either returns the appropriate answer.
I know how to do everything else above except how to get the
input from the text file in real time.
My program works without any flaws without any of the stdin or
stdout in the normal console.
I hope this is clear enough to supply me with an answer.
I thank you once again for your time and hope you can spare a
little more to help me on the way.
On Mon, Dec 8, 2014 at 7:33 AM, Alan Gauld
<alan.ga...@btinternet.com <mailto:alan.ga...@btinternet.com>>
wrote:
On 07/12/14 17:38, diliup gabadamudalige wrote:
if __name__ == '__main__':
You don't really need that unless your code can be treated
as a module, which yours can't.
p = os.getcwd()
filename = "\get scale of choice.txt"
filepath = p + filename
sys.stdout = open(filepath, "w")
Why are you overwriting stdout with a file?
Why not just write to the file directly?
Usually if you do overwrite stdout you make a reference
to the old stdout first so you can restore it later.
os.startfile(filepath)
This tries to execute filepath, but you just opened it
in write mode which creates an empty file. So you are
trying to execute an empty file?
for i in data.info <http://data.info>
<http://data.info>:
What is data?
and what is the url like thing supposed to be?
Have you done a tutorial on Python?
Do you understand how the for loop works?
It needs an iterator/collection to operate on.
# print all the scale info
to window
print i
This will print to stdout, which you have assigned
to a file above. So it won't print in any window.
run = True
while run:
scaletemplate = ["C", "D", "E", "F", "G",
"A", "B"]
getscale = sys.stdin.raw_input(filepath)
Not sure what this is doing but raw_input reads from
stdin - it is not a method of stdin. And the argument to
stdin is supposed to be a prompt to the user, you have
passed a filename?
#getscale = raw_input("Which scale do you
require?:")
if len(getscale) > 1:
getscale = getscale[0].upper() + getscale[1:]
getscale is commented out so this will raise an error.
else:
getscale = getscale.upper()
if getscale in data.scalenames:
scale = main(getscale)
print scale
Again, what is data?
elif getscale == "Q" or getscale == "X" or
getscale == "":
run = False
print"exiting..."
else:
print "No such scale"
Again, these prints will go to your file since it is stdout.
I need to get the stdin input from the text I type
into the same text
file that I have stdout at.
How would that work exactly?
You want to open the file in a text editor or somesuch?
Then as you type into it you want Python to read the
values you type? Before you save it? Or after? And you
also want the output from Python to go into the file that
you are editing? While you are editing it?
Can you explain exactly how the user is expected to use
this combination of things?
It is not clear, very unlike any normal computing task and
probably impossible. I suspect you have a concept in your
mind but it's not
what you are describing here.
How do I do that. None of the answers at
stackoverflow got me going.
I'm not surproised, I think what you are asking is impossible
(or at least very difficult) , and even if it isn't it
would be
a weird way of working.
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos
_______________________________________________
Tutor maillist - Tutor@python.org <mailto:Tutor@python.org>
To unsubscribe or change subscription options:
https://mail.python.org/mailman/listinfo/tutor
--
Diliup Gabadamudalige
http://www.diliupg.com
http://soft.diliupg.com/
**********************************************************************************************
This e-mail is confidential. It may also be legally
privileged. If you are not the intended recipient or have
received it in error, please delete it and all copies from
your system and notify the sender immediately by return
e-mail. Any unauthorized reading, reproducing, printing or
further dissemination of this e-mail or its contents is
strictly prohibited and may be unlawful. Internet
communications cannot be guaranteed to be timely, secure,
error or virus-free. The sender does not accept liability for
any errors or omissions.
**********************************************************************************************
--
Diliup Gabadamudalige
http://www.diliupg.com
http://soft.diliupg.com/
**********************************************************************************************
This e-mail is confidential. It may also be legally privileged. If
you are not the intended recipient or have received it in error,
please delete it and all copies from your system and notify the
sender immediately by return e-mail. Any unauthorized reading,
reproducing, printing or further dissemination of this e-mail or
its contents is strictly prohibited and may be unlawful. Internet
communications cannot be guaranteed to be timely, secure, error or
virus-free. The sender does not accept liability for any errors or
omissions.
**********************************************************************************************
--
Diliup Gabadamudalige
http://www.diliupg.com
http://soft.diliupg.com/
**********************************************************************************************
This e-mail is confidential. It may also be legally privileged. If you
are not the intended recipient or have received it in error, please
delete it and all copies from your system and notify the sender
immediately by return e-mail. Any unauthorized reading, reproducing,
printing or further dissemination of this e-mail or its contents is
strictly prohibited and may be unlawful. Internet communications
cannot be guaranteed to be timely, secure, error or virus-free. The
sender does not accept liability for any errors or omissions.
**********************************************************************************************
