When i run:
pyautogui.hotkey('ctrl','a')
it works fine.
But when i put the string in a variable it doesn't work:
my_var = "'ctrl','a'"
pyautogui.hotkey(my_var)
my_var is a string object, python do not trow an error, but nothing happens.
If I try with a list objekt like, dosen't work:
pyautogui.hotkey(list(my_var))
I can do:
print(my_var)
And I get back:
'ctrl','a'
I can make pyatogui.press(tab) work from a variable.
I have tryed some kind of raw string:
my_var = r"'ctrl','a'"
without any succes.
In PyCarm the comma is orange (probably a list of arguments), and green when string is put in a variable.
I upload an image of my example code:
And the complete code for anyone to try (maybe I should warn that it when it works press ctrl+a, witch in most programs are select all):
import time
import pyautogui
time.sleep(3)
# This part works
pyautogui.hotkey('ctrl','a')
# This part do not work, no error
my_var = "'ctrl','a'"
pyautogui.hotkey(my_var)
I run Windows10 and python 3.7 and PyCharm.
pyautogui.hotkey('ctrl','a')
enter code here
Pases 2 arguments to the function
But when you use this:
my_var = "'ctrl','a'"
pyautogui.hotkey(my_var)
You pases just 1 argument to the function which doses not work in this case
You can use:
my_var = ['ctrl','a']
pyautogui.hotkey(my_var[0],myvar[1])
or
my_var = {”first”:'ctrl',”second”:'a'}
pyautogui.hotkey(my_var[”first”],myvar[”second”])
Thanks rafalou38 for giving me some feedback, I been trying this for 2 h.
Your ide actually works for this special case if we first do a split, and then add the str() funktion to the seperate list elements, I did it with the pluss sign insted as below:
my_var = "ctrl+a"
my_var = my_var.split('+')
pyautogui.hotkey(str(my_var[0]),str(my_var[1]))
This will be good enough for all cases with 2 arguments, and I could easy hardcode a case for 3 as well with:
len(my_var)
will give me how many elements it has, there could be some cases with 3 or even 4 but then very unlikly above that. Thanks a lot for the input. Great now I can go to bed, thinking this can be fixed for all likly cases.
I tried this for making a new folder witch is of order 3, and it worked out on first try:
my_var = "ctrl+shift+n"
my_var = my_var.split('+')
pyautogui.hotkey(str(my_var[0]),str(my_var[1]),str(my_var[2]))
:)
Related
Problem
I'm writing a Julia script, and in the function there is a while loop. Inside the while loop there is a variable. That line is throwing errors about the variable being undefined when in fact that is the very line defining the variable.
The code
The error is on line 65
function cleanTexLoop(fileName::String)
f = open(fileName, "r")
while ! eof(f)
line = readline(f), <-- line 65
#line = sentenceFilter(line)
println(line)
end
close(f)
end
The function opens a file which IS getting passed into a loop. The loop runs until the end of file. While looping the file is read line by line. Each time it is read the line is stored in variable line and the file advances. In the proper version, that one line (66) isn't commented out, however for debugging it is. line is then taken as input into a filter which modifies the line before storing it again as line. The final version of this script will have four filters, but for now, I'd be happy to get this to run with just zero filters.
(Note that a user has kindly pointed out the comma that after hours of looking at the code continued to allude me. I'm waiting for that user to write up an answer)
The error message
cleanTexLoop("test.tex")
ERROR: UndefVarError: line not defined
Stacktrace:
[1] cleanTexLoop(::String) at /home/nero/myScripts/latexCleaner.jl:65
[2] macro expansion at ./REPL.jl:97 [inlined]
[3] (::Base.REPL.##1#2{Base.REPL.REPLBackend})() at > ./event.jl:73
Previous working version
I had previous written another version of this which works in entirety, however I needed to make some substantial changes to its structure in order to better suit future plans. Note that some of the names aren't up to the normal naming convention. Namely, I use "!" when no variables are actually being changed.
function CleanTexLoop(fileName::String,regX::String,sub::String)
f = open(fileName, "r")
while ! eof(f)
println(applySub!(f,regX,sub))
end
close(f)
end
function applySub!(file::IOStream,regX::String,sub::String)
return replace(
readline(file),
Base.Regex(regX),
Base.SubstitutionString(sub)
)
end
A simple loop which demonstrates why this should work
x = 0
while x < 4
y = x
println(y)
x = x+1
end
As expected, this prints zero to one, and is, as far as I can tell, representative of what I am doing. In both cases I am passing some variable into the loop which, through some action, defines another variable inside the loop which is then printed. Why this works, and the other doesn't is beyond me.
What I've seen on Google.
From looking this problem up, it appears as if this problem arrises when defining variables outside of a loop, or similar environment, as a result of them failing to be passed into the environment. However, this isn't what's happening in my case. In my case the variable is being defined for the first time.
As mentioned in the comments, the problem was an errant comma.
I am trying to show in Chrome using Sinatra, the result of ls. But the explorer gets in an "Connecting..." loop.
My code is:
require 'rubygems' if RUBY_VERSION < "1.9"
require 'sinatra/base'
#This is the webservice to launch the gamma project
#Using Request at the principal webpage
class MyApp < Sinatra::Base
get '/' do
result = exec "ls"
puts result
end
end
I am not sure of that puts, I think that maybe is not the apropiate method. What could be happening and how can I solve it?
PS: In the explorer I used localhost.com:4567/
Use the backticks ( ` ) instead of the Kernel#exec command. The former returns a string that you can then use in your ruby process. The latter throws your execution context into a new process and has no return value.
get '/' do
result = %x`ls`
puts result
end
Note that the call to puts will not look very nice and that you'll probably want to format it or parse/manipulate it further. But at least you'll get something you can use.
As #pgblu pointed out you should use backticks.
https://stackoverflow.com/a/18623297/1279355
And the second thing, puts print the result only to your shell/log,
but to see the result in your chrome you need either:
get '/' do
result = %x`ls`
return result
end
or
get '/' do
result = %x`ls`
result
end
As you can see the return is optional, if there is no return Sinatra just displays the last variable/operation.
I am running a shell script which emits lots of line while executing...they are just status output rather than the actual output....
I want them to be displayed on a JTextArea. I am working on jython. The piece of my code looks like:
self.console=JTextArea(20,80)
cmd = "/Users/name/galaxy-dist/run.sh"
p = subprocess.Popen(cmd, stdout=subprocess.PIPE,stderr=subprocess.PIPE, shell=True)
self.console.append(p.stdout.read())
This will wait until the command finishes and prints the output. But I want to show the realtime out put to mimic the console. Anybody have the idea ?
You're making things more complicated than they need to be. The Popen docs state the following about the stream arguments:
With the default settings of None, no redirection will occur; the child’s file handles will be inherited from the parent. [my emphasis]
Therefore, if you want the subprocess' output to go to your stdout, simply leave those arguments blank:
subprocess.Popen(cmd, shell=True)
In fact, you aren't using any of the more advanced features of the Popen constructor, and this particular example doesn't need any parsing by the shell, so you can simplify it further with the subprocess.call() function:
subprocess.call(cmd)
If you still want the return code, simply set a variable equal to this call:
return_code = subprocess.call(cmd)
>> set signal_name [get_fanout abc_signal]
{xyz_blah_blah}
>> echo $signal_name
#142
>> set signal_name [get_fanout abc_signal]
{xyz_blah_blah}
>> echo $signal_name
#144
>>
I tried other stuff like catch etc, and every where, it returns #number. My goal is to be able to print the actual value instead of the number - xyz_blah_blah.
I am new to tcl. Want to understand, if this is an array or a pointer to an array or something like that. When I try the exact same thing with a different command, which returns just a value, then it works. This is a new command which returns value in parenthesis.
Please help. Thanks.
Every Tcl command produces a result value, which you capture and use by putting the call of the command in [square brackets] and putting the whole lot as part of an argument to another command. Thus, in:
set signal_name [get_fanout abc_signal]
the result of the call to get_fanout is used as the second argument to set. I suggest that you might also like to try doing this:
puts "-->[get_fanout abc_signal]<--"
It's just the same, except this time we're concatenating it with some other small string bits and printing the whole lot out. (In case you're wondering, the result of puts itself is always the empty string if there isn't an error, and set returns the contents of the variable.)
If that is still printing the wrong value (as well as the right one beforehand, without arrow marks around it) the real issue may well be that get_fanout is not doing what you expect. While it is possible to capture the standard output of a command, doing so is a considerably more advanced technique; it is probably better to consider whether there is an alternate mechanism to achieve what you want. (The get_fanout command is not a standard part of the Tcl language library or any very common add-on library like Tk or the Tcllib collection, so we can only guess at its behavior.)
I am playing around with a small Vim function that will highlight whitespace.
But the execute command is behaving differently than when its called directly.
So the function looks like this:
function! ShowWhitespace()
execute "/\\s\\+$"
endfunction
And it is mapped as:
command! SW call ShowWhitespace()
When :SW is executed it simply searches and gets the cursor to where whitespace exists.
However, when I do this in the command line:
:exe "/\\s\\+$"
It highlights correctly the whitespace. I am also making sure that highlightsearch is always on, so this is not an issue of having it on or off.
As a side note, I need to have this in a function because I want to have other things that have not yet been added to it for flexibility (like toggling for example).
Why would this behave differently in a function than executing it directly? I've written a wealth of functions in Vim and never seen this work different.
EDIT & Solution:
So it seems Vim doesn't like having functions altering searches. As soon as a function exits the search patterns are cleared (as pointed out by :help function-search-undo.
This might look ugly but does what I was looking to do in the first place:
command! -bang Ws let orig_line = line('.') | exe ((<bang>0)?":set hls!":":set hls") | exe '/\s\+$' | exe orig_line
Explained bit by bit:
Maps the (bang-accepting) Ws command to the following actions:
saves the original line where cursor is located
depending on bang or no bang (e.g. :Ws! or :Ws) it sets highlightsearch
Executes the search to find whitespace
Goes back to the original line if it changed
If you don't wish to move the cursor (and never do it), just set #/ to the correct search pattern, i.e.:
let #/ = '\s\+$'
NB: the function should have moved the cursor.