When using the magic function %edit from QtConsole with IPython, the call does not block, and does not execute the saved code. It does however save a temporary file...
I think this is intended behavior due to GUI editors and uncertainty, and whatever that reason is for not being able to communicate with subprocess (pyZMQ?).
What do you suggest as the best way to mix %edit/%run magics?
I would not mind calling two different commands (one to edit, and one after I have saved and execution is safe). But those commands need a way to synchronize this target file location, or someone to persist storage, and probably need some crude form of predicatably generating filenames such that you can edit more than one file at a time, and execute in arbitrarily. Session persistence is not a must.
Would writing my own magic do any good? Hope we can %edit macros soon, that would do well enough to make it work.
you shoudl be able to do %edit filename.py and %run filename.py. The non blocking behavior is expected, and IIRC due to technical reason. Not unsurmountable but difficult.
You could define your own magic if you wish, improvement are welcomed.
Hope we can %edit macros soon, that would do well enough to make it work.
For that too, PR are welcomed. I guess as a workaround/option you can %load macro which would put macro on input n+1 , edit it and redefine it, that might be a good extension for a cell magic %%macro macroname
If you have some executable code on your input (from QtConsole), you can type
%edit 1-5
This fires the editor, creates a temporarily file (automatically managed), and loads your input lines. This is nearly enough, now how to retrieve the name of that temp file pragmatically?
I see the print statement on Stdout, but its not visible to QtConsole AFAIK. Could maybe redirect stdout to catch that line, but that may not be an option anyway if your doing something else with stdout.
If I could retrieve the full pathname that was just created, this would be cake. Store it where some magics will know how to find it. Then issue a followup command when ready,pops the name off the stack, loads it into a macro, and run. All this with 2 input commands and no names to remember (unless you want to find and use that macro again, but for 1 shot stuff...)
How do I catch or retrieve the path of that temporary file?
Related
When I save a method and get back to it later, all of my variable names become temp and all of my parameters becomes arg and the code indentation get changed.
Any thoughts on how I can fix this?
The behaviour that you are experiencing is not code formatting at all. You immage is experiencing an issue where it can't access original source code. Thus it uses a backup solution and decomples method bytecode. During the compilation process the variable names are erased, so they can't be re-created during the decompilation, and generic substitudes are used instead.
Now, why you are missing sources is another question. First of all it's important to check if you get some exceptions. Often these happen when you open or save your image, but also thaty may occur when you save methods.
Depending on the Pharo version you may be missing .changes or .sources files. This often happens when you more an image without moving other supporting files.
Recently, I've been trying to write to a .PAK file while it is being used by another process in ring 0. This has been a problem for quite a while and i haven't had much success. I am able to use any programming language necessary to accomplish this, but C#/VB.net is preferred. I originally wanted to use a find and replace system when editing, but I will just choose and offset to write to and such instead.
No, I can't just terminate the process then edit; the process must be running. Yes, I obviously know the process with the file handle attached.
No, I can't just run as admin because the process is established in ring 0/the kernel.
I've tried multiple methods including setting the process speed temporarily to 0 to edit then revert, and changing the FileShare and other parameters, none with any success.
One approach which I have been told a lot and which I have no experience in is creating a "Kernel Driver". I'm not sure how to go about this and I cant find much info online so if you think that's is the best method please inform me on how to get started. Any help is appreciated!
Always create a temporary file (a copy of your original file). If you need to process a file within your codes, create a temp file, use the temp file and process that file. So if you need another process, there will be no problem.
I have a two broken VIs with front panels that open fine, but I can't edit or run them, or open theis block diagrams.
One of these was made as a replacement for the first when it started to have this problem. I need to at least find out how to avoid this problem in future, so I don't lose work on bigger VIs.
I'm not sure if it makes any difference, but I very recently upgraded to LabVIEW 2013.
Thank you in advance.
This is the error I get when I try to run them:
"
VI has a bad connection to or cannot find a subVI or external routine.
This VI has a bad connection to or cannot find a subVI or external routine but
it has no block diagram to show or fix the error. You must find or correct the
subVI or external routine. Check for more information in the Explain dialog box
in Get Info.
"
Before reverting to a previous version (using dropbox) I got a different error with one of them:
"
LabVIEW: Generic error.
An error occurred loading VI 'sweep harmonics first test.vi', LabVIEW load
error code 6: Could not load the block diagram.
"
One situation how this happened.
Sometime LabVIEW crashes, and it restart. After restart, LabVIEW will ask you to recover the autosaved code.
I personally always discard those autosaved code. If you do choose to recover autosaved code, there is a chance the recovered code is corrupted. Once you save corrupted code to disk, you are probably going to lose the ability to open/save the block diagram ever again.
Having a version control system is usually a way to avoid minimize the damage when LabVIEW crashes. At worst, you loose maybe an hour worth of work.
If you can't open Block Diagram of your VI, first check the suggestion by #Rodrigo - it is most likely just a "compiled" VI, which has Block Diagram removed.
If you think there is Block Diagram inside and it is just corruped - you may contact NI support. And if you want to look deeper by yourself, extract the VI to XML using pyLabview, and look into the XML - there you can modify every single part of the VI. For example, you may start removing parts until it starts working.
I wouldn't go into manual VI editing unless you have at least a dozen of affected files though. For a single file, it will be faster to re-create it in LabVIEW instead of trying to understand the internals. If many files are affected - may be worth finding the issue in one, as other files probably have the same glitch, so you can make a script which extracts, modifies and re-creates VIs automatically.
From the sound of it, I believe what happens is that you are trying to run the VI's created as "DATA" for an executable, instead of the actual source VI's.
When you build an executable LabVIEW creates a copy of all the Top Level VI's dependencies into the support (DATA) folder which should be in the same directory as your executable.
Try opening the VI's that are marked as not having a block diagram and navigate to File>>VI Properties to check the path from which the VI is being loaded. If it's not the original VI, you can just replace it.
is there any way to use html anchor tag in a gml file..I want to create a hyperlink to location/point in a gml file.
how can i do so???
thanks in advance..
This is a little known GML technique that GREATLY increases the power of Game Maker, and is well worth learning, but as a note, it does NOT work in Studio, because of the countless new restrictions on commands. Go back to GM8.1 (I only ever use that now), and you should have no problem making use of this technique.
The technique is to write a program in another language through GML (batch, vbs, etc, or in this case, HTLM), execute it through GML, then delete the program.
Quite simply, use the file_text commands to create a file with the correct content and extension, execute it with execute_program, and then delete it with file_delete.
Specifically for this script:
argument0 is the link, including the protocol.
argument1 is the anchor, minus the # (that's handled for you).
argument2 is the full browser path.
argument3 is important. This is the time in milliseconds the program will wait before deleting the temporary link file.
(The execute_program command, even when told to wait for the program to complete, continues as soon as the temp file is loaded. If external, the redirect takes some time depending on your connection, so deleting the temporary file halfway through will cause it to fail. 10 milliseconds worked fine for me. The program will hang for this time in this setup, but if you would like to set up an alarm based system to stop it from hanging, that wouldn't be too hard.)
In other uses of this technique without the use of the internet (I use small batch and vbs files a lot), the "hang time" (pun not intended) is usually not necessary.
In addition, the browser location will need to be changed for each different computer
file=file_text_open_write(temp_directory+"\tempLink.html")
file_text_write_string(file,'<!DOCTYPE html>')
file_text_writeln(file)
file_text_write_string(file,'<html>')
file_text_writeln(file)
file_text_write_string(file,'<body onload="')
file_text_write_string(file,"location.href='")
file_text_write_string(file,argument0+"#"+argument1+"';")
file_text_write_string(file,'">')
file_text_writeln(file)
file_text_write_string(file,'</body>')
file_text_writeln(file)
file_text_write_string(file,'</html>')
file_text_close(file)
execute_program(argument2,temp_directory+"\tempLink.html",true)
sleep(argument3)
file_delete(temp_directory+"\tempLink.html")
Sorry I wish It was possible but it's not unless you want to spend a lot of time with dll's. BUT you can create a Script and reuse it everywhere in your code...
script0(argument0,argument1...)
Good news, my c64 ist still running after lots of years spending time on my attic..
But what I always wanted to know is:
How can I automatically load & run a program from a floppy disk that is already inserted
when I switch on the c64?
Some auto-running command like load "*",8,1 would be adequate...
Regards
MoC
You write that a command that you type in, like LOAD"*",8,1 would be adequate. Can I assume, then, that the only problem with that particular command is that it only loads, but doesn't automatically run, the program? If so, you have a number of solutions:
If it's a machine language program, then you should type LOAD"<FILENAME>",8,1: and then (without pressing <RETURN>) press <SHIFT>+<RUN/STOP>.
If it's a BASIC program, type LOAD"<FILENAME>",8: and then (without pressing <RETURN>) press <SHIFT>+<RUN/STOP>.
It is possible to write a BASIC program such that it automatically runs when you load it with LOAD"<FILENAME>",8,1. To do so, first add the following line to the beginning of your program:
0 POKE770,131:POKE771,164
Then issue the following commands to save the program:
PRINT"{CLR}":POKE770,113:POKE771,168:POKE43,0;POKE44,3:POKE157,0:SAVE"<FILENAME>",8
This is not possible without some custom cartridge.
One way to fix this would be getting the Retro Replay cartridge and hacking your own code for it.
I doubt there is a way to do it; you would need a cartridge which handles this case and I don't think one like that exists.
A better and more suitable solution is EasyFlash actually. Retro Replay is commonly used with its own ROM. Since it is a very useful cartridge by default ROM, I would never flash another ROM to it. Also it is more expensive than EasyFlash if you don't have any of those cartridges.
At the moment, I have Prince Of Persia (!) ROM written to my EasyFlash and when I open my c64, it autoruns just like you asked for.
Not 100% relevant, but C128 can autoboot disks in C128 mode. For example Ultima V (which has musics on C128 but not on C64 or C128 in C64 mode) autoboots.
As for cartridges, I'd recommend 1541 Ultimate 2. It can also run games from module rom images (although Prince of Persia doesn't work for me for some reason, perhaps software issue?), but you also get rather good floppy emulator (which also makes it easier to transfer stuff to real disks), REU, tape interface (if you order it) etc.
If you are working with a ML program, there are several methods. If you aren't worried about ever returning to normal READY prompt without a RESET, you can have a small loader that loads into the stack ($0100-$01FF) The loader would just load the next section of code, then jump to it. It would start at $0102 and needs to be as small as possible. Many times, the next piece to load is only 2 characters, so the file name can be placed at $0100 & $0101. Then all you need to do is set LFS, SETNAM, LOAD, then JMP to it. Fill the rest of the stack area with $01. It is also rather safe to only save $0100-$010d so that the entire program will fit on a single disk block.
One issue with this, is that it clears out past stack entries (so, your program will need to reset the stack pointer back to the top.) If your program tries to do a normal RTS out of itself, random things can occur. If you want to exit the program, you'll need to jmp to the reset vector ($FFFC by default,) to do so.