I have a (cross-platform) script which invokes Excel/LibreOffice to open a file. Under Linux I don't have any problem, but with Windows there are problems when spaces are in the path of the file. This is a known issue, I've read quite some posts, but none seems to answer the specifics. Here is what I do:
subprocess.run([self.settings.excel, path])
The problem I end up with is the following: Excel complains that the file Your%20Preferred%20Path%20With%20Spaces cannot be found (obviously) although the parameter I give to subprocess isn't url-encoded like this.
So: who is garbaging my string ? Is it Excel, subprocess…?
I have found a workaround, using os.startfile, but it is not cross-platform. While having to execute different code according to the underlying platform may work as a patch, caring about so low-level details is hardly pythonic.
Therefore: what should I do to have a cross-platform, standard code solving this issue (and avoiding big libs like webbrowser if at all possible)? How could I build path so that it is passed to Excel in the expected format?
Related
I am creating a npm library where I need to read the files of the folder from where my library function were invoked from command line and then operate on those files.
By operation I mean to check if a variable exist, if a function exists, modifying variable, function,etc.
The files will be a Typescript files.
Any help on how to proceed will be great.
Seems like you need some kind of AST parser like Esprima or babel-parser. These tools can parse the content of JS/TS files, build the abstract syntax tree that can be traversed, modified and converted back to the source code.
There's a lot of useful tools available in Babel toolset that simplifies these operations. For example, babel-traverse simplifies searching the target statement or expression, babel-types that helps to match the type of the AST nodes and babel-generator that generates the source code from the AST.
It's going to be very difficult to get these answers without running the files.
So the best approach is probably to just import the files as usual and see what side-effects running the files had. For example, you can check if a file exported anything.
If this doesn't solve your problem, you will have to parse the files. The best way to do that might be to use the typescript compiler itself:
https://github.com/microsoft/TypeScript/wiki/Using-the-Compiler-API
I'm trying out Freeling's API for python. The installation and test were ok, they provide a sample.py file that works perfectly (I've played around a little bit with it and it works).
So I was trying to use it on some other python code I have, in a different folder (I'm kind of guessing this is a path issue), but whenever I import freeling (like it shows on the sample.py):
import freeling
FREELINGDIR = "/usr/local";
DATA = FREELINGDIR+"/share/freeling/";
LANG="es";
freeling.util_init_locale("default");
I get this error:
ModuleNotFoundError: No module named 'freeling'.
The sample.py is located on the ~/Freeling-4.0/APIs/Python/ folder, while my other file is located in ~/project/, I dont know if that can be an issue.
Thank you!
A simple solution is to have a copy of freeling.py in the same directory as your code, since python will look there.
A better solution is to either paste it in one of the locations where it usually checks (like the lib folder in its install directory), or to tell it that the path where your file is should be scanned for a module.
You can check out this question to see how it can be done on Windows. You are basically just setting the PYTHONPATH environment variable, and there will only be minor differences in how to do so for other OSes. This page gives instructions that should work on Linux systems.
I like this answer since it adds the path at runtime in the script itself, doesn't make persistent changes, and is largely independent of the underlying OS (apart from the fact that you need to use the appropriate module path of course).
You need to set PYTHONPATH so python can find the modules if they are not in the same folder.
You can find a mention of it here: https://code.visualstudio.com/api/language-extensions/language-server-extension-guide
however without any explanation. I couldn't find information about it by googling.
What is the purpose of a .clientrc file?
As mentioned in the comments, ".clientrc" was just chosen as an example file name.
If you google site:code.visualstudio.com clientrc, that page is the only search result. And googling site:github.com/microsoft/vscode "clientrc", all the results are about example code (and most are about that example code specifically).
The .*rc file name pattern is a common convention for application-specific configuration files. There's a baeldung article on it:
Names including rc often signify files or directories of files with code. Specifically, this code consists of commands that are meant to run when a program is executed. Indeed, that program can be an application, but it can also be a whole operating system.
Because of this, the original rc affix and extension both meant “run commands”. In particular, a widely accepted source of the term is the Compatible Time-Sharing System (CTSS)
When converting a thrift object for nodejs:
thrift -r --gen js:node state_service.thrift
The following error is thrown:
[ERROR: /state_service.thrift:33] (last token was 'not') Cannot use
reserved language keyword: "not"
The lines in the code around 33 are:
typedef bool Not
struct Exp {
1: string left
2: Not not
3: BinaryOp op
4: AnyValue right
}
I am using the most recent Thrift version 0.9.2
Try to change the not to something else, i think the problem is that 'not' may have another meaning in the language that you choose to generate.
2: Not not
The solution is to not use the reserved language keyword, as advised by the Thrift compiler. These keywords are reserved for a reason. Thrift is a cross-language tool, and not is indeed a keyword in some of them.
I don't want to change the processing code only because of a faulty js converter.
I beg to differ. Faulty is something that does not work, altough it should. Thrift clearly tells you that what you are about to try is illegal (as of today) and what the problem is.
To put it another way: With Linux, you can put uppercase and lowercase letters in a file name (actually you can put a whole bunch of strange things in, but I'll make it easy). So creating a FILE and a file in the same folder will work perfectly. If you now take your program and run it on Windows, relying on that behaviour, you will sooner or later run into trouble and may start to complain you "dont want to change your processing code only because of that faulty OS".
Note that complaining will not help you out of the pothole, altough the endorphines emitted during that process will make sure you have a fun time. The solution is of course to wait until Microsoft fixed their faulty OS, because you make the rules. Correct?
Of course not. So if you feel the implementation is wrong - fine! This is Open Source, and nobody claimed perfection. You are free to provide a patch, and we will happily review it. But please make sure you tested it with all 20+ languages currently supported by Thrift.
I am trying to update an old X11/Motif application to use modern objects and libraries. I used ldd to get a list of all the shared objects being used, but I am trying to figure out what functions in particular link to those libraries so I can remove the deprecated functions. Any ideas? Thanks
In particular (but not limited to), libXp.so.6
To see what functions are in libXp.so.6, try:
nm -D --defined-only /usr/lib/libXp.so.6
Now you can see that they all start with Xp, except for a few weird ones that probably aren't meant to be in the public API.
Your simplest approach is probably to just use grep to search for Xp, or a regex like Xp[A-Za-z]+, in the source code.