2017-09-20 2:18 GMT+02:00 Alan Gauld via Tutor <tutor@python.org>: > On 19/09/17 21:13, Larry Staley wrote: > > Hello I am very new to Python just having installed Python Version 2.7 > onto > > my windows 8.1 laptop. I thought the install was successful and was > > entering information for my first assignment when I received an > unexpected > > error. > > Where did you get your vesion of Python? > If it was the standard distribution from python.org or > activestate.com then it does not include any of the SciPy > packages(*) and you need to install them separately. > > If you expect to be using mamny of these types of package > you are best fetching a distribution that includes them > all, for example, Anaconda or Enthought > > (*)Pandas is part of the SciPy suite of third party add-ons. > > > I executed a Sheets command using an earlier generated getSheetNames > > function that successfully was entered by me. > > When you define a function the code inside is not > executed merely compiled into a function object > ready for execution. > > > However, when I ran the Sheets command I received the following: > > Its only when you call the function that the code inside > gets executed. > > > def getSheetNames(excelfile): > > from pandas import ExcelFile > > Its normal in Python to put all imports at the top of > the file rather than inside any functions. In this > case you try to import pandas everytime you call > the function and while its not a big overhead it > mounts up if you were calling this inside a > repeating loop. > > And if the import was outside the function you would > pick up the import error earlier. > > >>>> excelfile=r:"C:\Users\Larry > >>>> sheets=getSheetNames > > (excelfile);sheets > > I'm not sure what you are doing with that > final ;sheets. I assuyme trying to evaluate the result of the function? > > It would be normal to just print it: > > >>> print getSheetNames(excelFile) > > or, if you need to store the result: > > >>> sheets=getSheetNames(excelfile) > >>> sheets > > Combining commands on a single line doesn't save > much typing and makes debugging harder. > > > I have in addition included the actual Python I executed and received the > > message. It is attached in the file. > > attachments often get rejected by the mailer, > if its not a huge file(>100 lines) just paste > it into the email. > > Always include the full error trace too. > > > If I need to install Pandas, please indicate clearly how I do using my > > current ver 2.7 python install. > > The easiest way is just to grab one of the > all-inclusive Python distros mentioned above. > > -- > 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 > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor >
Hi Larry, If You just installed Python 2.7, maybe it would be a good idea to replace it with Python 3.6. It will not solve Your problem, but support of Pyhon 2 will be finished in 2020, and that time You will have to learn Python 3 anyway. So it is better to start with it if You have no any special requirement to use Python 2. (Python 3 is more modern, and is the future) ;-) @tutors Hi Tutors, I think we should encourage people new to Python to use Python 3 instaed of Python 2 as this is the future. ;-) BR, George _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
