I use Lablgtk and all functions except the function "GdkPixbuf.from_file" work well.
I can compile the code including the function "GdkPixbuf.from_file", but I can't execute it.
When I type the command "./programname" to execute it, I get an error:
Fatal error: exception GdkPixbuf.GdkPixbufError(3, "Couldn't recognize the image file
format for file 'filename.jpg'")
The code which doesn't include the function "GdkPixbuf.from_file" can be executed.
What should I do to make the function "GdkPixbuf.from_file" work well?
It looks like that your GdkPixbuf doesn't support jpg files. You can either convert your image file to another format, like:
convert filename.jpg filename.png
Or you can try to install supporting modules. Some more information can be found here
Related
I have a Julia program that inputs a csv and transforms the data via a bunch of functions, and outputs a csv file. I want to turn this into a binary so that I can run on different machines without having the source code on different machines.
I am looking at PackageCompiler.jl, but I can't find any understandable documentation for creating a binary app. I am trying:
using PackageCompiler
#time create_app("JuliaPrograms", "test"; precompile_execution_file="script.jl")
The file that contains all my code is script.jl and it lives in the dir JuliaPrograms, and I want the compiled binary to be named test.
When I run julia script.jl it performs as I want. I want to be able to run ./test with the same result.
However, I get this error:
ERROR: could not find project at "/Users/userx/JuliaPrograms/"
What am I doing wrong? Do I need some special project directory?
Per the docs here: https://julialang.github.io/PackageCompiler.jl/dev/apps.html#Creating-an-app-1 you need to make sure you define:
function julia_main()::Cint
# do something based on ARGS?
return 0 # if things finished successfully
end
a function called julia_main as the entry point to the app. You can find an example app here: https://github.com/JuliaLang/PackageCompiler.jl/tree/master/examples/MyApp
You may also want to check the location of the code itself. Is it being saved at "/Users/userx/JuliaPrograms/"? You can switch your directory in the Julia Reply by typing ; which will enter you into shell mode and then you can cd into the directory where your code is.
I am having a little bit of an issue to correctly understand the format of running protoc to generate Go source from proto files.
I have tried
protoc --proto_path=api/auth-service api/auth-service/proto/*.proto --go_out=pluigins=grpc:pb
and
protoc --proto_path=api/auth-service/proto/*.proto --go_out=pluigins=grpc:pb
The above always print
api/auth-service/proto/*.proto: warning: directory does not exist.
or
Missing input file.
eventually, after a lot of playing around it seems that thing works.
protoc --proto_path=api/auth-service api/auth-service/proto/*.proto --go_out=pluigins=grpc:pb
But I am very confused about the actual correct format (passing in the directory twice and the 2nd passing in *.proto)
I tried finding some syntax why it was working this way but I couldn't.
There was also passing -I instead of --proto_path.
You have to run with a named proto ( so replace the * with your proto filename, should fix it)
I regularly scan in my Homework for class. My scanner exports raw jpg files to usb, and from there I can use gimp to edit and save the files as a pdf. One time saver I've found is to export my multi-page homeworks as a .mng file and then use the convert function to turn it into a pdf. I do it this way because Gimp automatically merges all layers when exporting to a pdf.
convert HW.mng HW.pdf
this works well for individual files, but at the end of every week I can have dozens of files to convert.
I have tried using wildcards in the filenames for convert:
convert *.mng *.pdf
This always runs successfully and never throws an error, but never produces any pdfs.
Both
convert HW*.mng HW*.pdf
and
convert "HW*.mng" "HW*.pdf"
yeild the error
convert: unable to open image `HW*.pdf': Invalid argument # error/blob.c/OpenBlob/2712.
which I think means the error lies in exporting with a wildcard.
Is there any way to convert all of a specific file type to another using convert? Or should I try using a different program?
You can see this StackExchange post. The accepted answer basically does what you want.
for file in *.mng; do convert -input "$file" -output "${file/%mng/pdf}"; done
For convert in particular, use mogrify (which is part of ImageMagick as well) as suggested by Mark Setchell in a comment. mogrify can be used to edit/convert files in batches. The command for your case would be
mogrify -format pdf -- *.mng
I'm new in Bioinformatics and Biopython, so I have some difficulties with it.
I was reading the Biopython (SeqIO) documentation, but when I try to execute some SeqIO.parse() commands I get FileNotFoundError.
For example, I want to get "example.fasta" file (which I don't have it on my PC). I try to do it with this command:
for record in SeqIO.parse("example.fasta", "fasta"):
print(record.id)
But, all I get is FileNotFoundError: [Errno 2] No such file or directory
Can someone help me with this?
My understanding is that FileNotFoundError occurs when the code tries to open a file on your computer and does not find it.
This can happen either because you simply do not have this file, or you gave the name with a typo, or the path to the file is not correct (This is an important notion: the path to the file should be absolute, or relative to the current working directory (usually the one from which you executed the python script)).
As suggested in the comments to your question, you seem to be expecting SeqIO.parse to get the file for you. This is not the case. The first argument you give to this function (in the example "example.fasta") is the path to an existing file that you want to "parse", that is, interpret its information content and make this content available to the rest of your program in a convenient form.
So in order to get this example working, you first need to get a fasta file. If you do not already have one, you can download some manually from genbank, or find one in the biopython installation (if you installed it from source and know where the source code is located), for instance in Tests/Quality/example.fasta.
am trying to extract to use all my box file to extract characters and when i try this line
unicharset_extractor *.box
it gives me an error that it cannot find *.box instead of loading all box files.
That specific program does not support such syntax. You have to chain the names of all the box files and feed to it, such as:
unicharset_extractor lang.fontname.exp0.box lang.fontname.exp1.box ...
You can write a script (e.g., train.ps1) to automate the process.
http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3
I finally made my own tool for that .
[link]http://code.google.com/p/serak-tesseract-trainer/