[Eric] 2 flaws when follow this tutorial

[Detlev Offenbach]

Hello iMath,

if Jaime doesn't have time to correct the tutorial for eric5, why don't you 
take over the job with his permission? That way we all could benefit from 
your research.

Btw, the import stuff is not an eric5 related thing but rather a Python3 topic. 
Just to let you know, eric doesn't require you to put these files anywhere 
specific.

Regards,
Detlev

On Sunday 02 June 2013, 23:02:33 Jaime Seuma wrote:


Hello iMath,


it is very kind of you to go through all the trouble of detecting the flaws and 
the causes originated them.
I guess that I should have emphasized in the tutorial that it was made for 
eric4; I wrote it before eric5 was released.
If memory serves, the procedures detailed in the tutorial used to work fine 
with eric4; no errors whatsoever when running the project...


I haven't actually tried to run the tutorial from within eric5, but it is possible 
that there are slight differences between eric4 and eric5 when it comes to 
the structure of the project, etc.
All in all, I still think that the tutorial is useful since it provides some 
guidelines for the newbie to work with the eric IDE.


Then again, maybe some day I'll have the time to update the tutorial for the 
current eric5 version (?).


Regards,


Jaime






On 22 May 2013 16:09, iMath <2281570025 at qq.com[1]> wrote:


I have found 2 flaws in this tutorial ,here is the solutions .
http://eric-ide.python-projects.org/tutorials/MiniBrowser/index.html[2]


1)      change the folder nam ‘ui’ to ‘UI ’ 
2)      do not use main script as the starter of the program ,i.e. not created 
it in your project 
  
the reason is as following
eric5 unhandled ImportErro: No module named icon_rc 
in order to set the window icon ,I used resource files ,then this error 
occurred when run the project through the main script ,why this error and 
how to fix it ? 
my project diagram structure is like this 
  
 
  
  
this is because eric5 leads us to create the main script in the top directory 
of the project ,but the qrc script is imported in the Ui_MainWindow by this 
statement 
  
import icon_rc 
  
this is a relative import and because the qrc script and Ui_MainWindow.py 
are in the same directory ,so when you run Ui_MainWindow.py directly ,it 
works ok ,but when you run your program through the main script ,this 
relative relationship broken ,because the main script is not in the same 
directory as the qrc script in (and also you cannot put the qrc script with 
the main script in the top folder ,why ?) ,so this error occurred .one way to 
solve this problem is to change that statement to 
  
import ui.icon_rc 
  
then it works. 
wait !!!have you noticed the state tip besides ? 
  
ui = Ui_MainWindow() 
Warning :Redefinition of unused ‘ui’ from line XXX 
  
this is because the folder that Ui_MainWindow.py resides in is also named 
‘ui’ ,they are conflicted ,so in order to avoid this problem and if you still 
want to use ‘ui ’ as the folder name ,you can use upper-case letters to 
rename it as ‘UI ’. 
  
another way to solve this issue is not to use main script as the starter of 
the program ,i.e. not created it in your project ,just port the code that you 
would have put in the main script to MainWindow.py ,only for one reason : 
if you do this ,you won’t encouraged the issues that I aforementioned ,also 
when you recomplie the ui file , 
  
 import ui.icon_rc 
  
will become back to 
  
 import icon_rc


so dizzy , isn’t it ? 




*Detlev Offenbach*
detlev at die-offenbachs.de

--------
[1] mailto:2281570025 at qq.com
[2] http://eric-ide.python-projects.org/tutorials/MiniBrowser/index.html
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