I have just started learning Python. I've been using R to do data analysis. One of the good things about RStudio is that we can select a few statements and press Ctrl+Enter to execute those lines. RStudio would show the output for each line.
For instance, the output of these lines:
a<-2
b<-3
a+1
b+2
would be
> a<-2
> b<-3
> a+1
[1] 3
> b+2
[1] 5
Please note that R, by default, would print all lines--not just the last line. This is immensely helpful when executing long scripts.
I learned from another thread and this thread that we can simulate above in Python by adding the following statements:
from IPython.core.interactiveshell import InteractiveShell
InteractiveShell.ast_node_interactivity = "all"
This works well. For instance, here's input and output:
from IPython.core.interactiveshell import InteractiveShell
InteractiveShell.ast_node_interactivity = "all"
from fractions import Fraction
import fractions
z = fractions.Fraction(1,3)
x = Fraction(1,3)
y = Fraction(2,3)
Fraction('0.25')
x+y
Out[50]: Fraction(1, 4)
Out[50]: Fraction(1, 1)
I have one question:
a) Adding InteractiveShell.ast_node_interactivity every time I execute my code is really annoying. Is there any way I can make this auto-executable (like .RProfile file in RStudio) when I start my PyCharm? (In RStudio, we have .RProfile file in which we can add all customizations. I prefer using PyCharm because of a lot of inbuilt features.)
One of the recommendations from SO threads was to modify ..\.ipython\profile_default and add above lines (i.e. ...ast_node_interactivity...) in .py file in Windows. Unfortunately, I have added above statements, and it wouldn't print the output of all statements in PyCharm. I still have to add those two lines to every .py file in PyCharm to see what's happening in my script. I am extremely frustrated with this.
Another recommendation was to add ;. This is annoying to me as well because then I have separate, say, 50 lines by ;, which would be difficult to read. Also, one has to remember to add ;, which is not good.
I am an absolute beginner. So, I'd appreciate any thoughts. I have googled this topic as well, and it seems there isn't much discussion on this topic.
I am adding clarification: I want to use PyCharm's Execute Selection in Console which has keyboard shortcut Alt + Shift + E in Windows. One would have to select a bunch of line of code and then see the output for each line (just as RStudio does). This helps when debugging a long script. As it is, it only prints the output of the last line if I don't add above two lines.
