I'm able to set Jupyter's QtConsole to use a plaintext widget instead of rich text by setting this
c.JupyterQtConsoleApp.plain = True
in the configuration file ~/.jupyter/jupyter_qtconsole_config.py
Spyder's IPython Console does not seem to respect the settings in this configuration file. How do I set this option (or get the same behavior) for Spyder's IPython Console?
(Spyder maintainer here) Spyder only uses rich text widgets in its consoles, so it doesn't respect the config option you mention (although it tries to respect most of the others).
I really don't understand why you would like to use plain text widgets instead, but if you want that possibility, there's always qtconsole, as you point out.
I've found a workaround for this issue which is to delete the _repr_latex_ methods defined by pint. In an __init__.py where I instantiate a unit registry to be used throughout a project I have the following:
import pint
ureg = pint.UnitRegistry()
# don't display latex in consoles
delattr(pint.quantity._Quantity, '_repr_latex_')
delattr(pint.unit._Unit, '_repr_latex_')
This should be safe since methods of the pattern _repr_<meme>_ are only used by IPython.display module.
Related
This is not about those files that have their read-only flag set at the OS level, but about every file that users don't intend to modify.
I want Sublime Text to ignore any changes and prevent saving anything to such files. One example for this scenario is when the user is reading source code that shouldn't be altered in anyway.
"Just be really careful, and don't press any buttons" is undoubtedly a good advice, but if I were to "accidentally" delete that octothorpe in front of a comment, or add new lines to a file that is sensitive to such things (some config files in Linux) and then accidently hit save....
I found "toggle-readonly" at GitHub, but it is actually toggling the file permissions ("Read Only", "Write"), which is not quite what I wanted.
Yes, this is possible, but you'll have to write a plugin (which actually isn't that hard, especially if you know Python). The API call is view.set_read_only(flag) in the sublime module, where Flag is a boolean. Here's a quick example which checks if a newly-opened file has a certain suffix, and if so sets it to read-only.
import sublime
import sublime_plugin
class MakeViewReadOnlyCommand(sublime_plugin.TextCommand):
def run(self, edit):
if self.view.file_name().endswith(".cfg"):
self.view.set_read_only(True)
class ConfigFileListener(sublime_plugin.EventListener):
def on_load(self, view):
view.run_command("make_view_read_only")
Open a new file with Python syntax, copy the code into it, alter it as needed, then save it in your Packages/User directory as make_view_read_only.py. Restart Sublime to load it, and you should be all set. To test if a certain view is read-only, open the console and enter
view.is_read_only()
The plugin "Toggle the View Read-Only" will do it. It basically does what MattDMo said: when you set the view as read-only, the file can still be changed by another program (or another user), and Sublime Text will pick up those changes. It also has the context menu item you asked for. I like the "Readonly" indicator in status bar.
I didn't test it on Sublime Text 2, but in Sublime Text 3 it works great, and it claims to work on Sublime Text 2 as well.
I have a program that uses a file called user.cfg to get its user defined configuration settings. The odd thing is that they chose the syntax for this file to be Tcl (it's not odd that it is Tcl, it's odd they chose the .cfg extension instead of .tcl). So, when I open this file in Sublime Text, it doesn't know what syntax highlighting scheme to choose.
What I would like to do is set the syntax highlighting for user.cfg to Tcl, but not all .cfg files to Tcl.
I have seen this question which is very similar to mine, except in that case the special file name had no extension so Sublime Text knew to assign Ruby highlighting to only that one file. Unfortunately, I have an extension so the solution given there will not work for me.
Is there any known way to get Sublime Text base a highlighting scheme on the full filename?
Take a look at the ApplySyntax plugin.
The previous answer is completely true; however, I thought it would be better to have it here all in one place rather than going on another webpage to find the list of procedure to apply it
Sublime text 3
This is found here
Ensure Package Control is installed. Instructions are found here.
In Sublime Text, press Ctrl＋Shift＋P (Win, Linux) or Cmd＋Shift＋P (macOS) to bring up the quick panel and start typing Package Control: Install Package.
Select the command and it will show a list of installable plugins.
Start typing ApplySyntax; when you see it, select it.
Restart to be sure everything is loaded proper.
Enjoy!
I'd like to create a package containing a series of snippets that incorporate user-definable variables. For example, I'd like the user to be able to provide a value for a variable called HOSTNAME and have the snippets include that user's value.
The Sublime Text Unofficial Documentation explains:
Snippets have access to contextual information in the form of environment variables. Sublime Text automatically sets the values of the variables listed below.
You can also add your own variables to provide extra information. These custom variables are defined in .sublime-options files.
I've had no luck finding any information on the syntax for a .sublime-options file, however, and Sublime does not seem to try to read a file with that extension when I save it anywhere under the Packages directory. Is this a typo?
Using a .tmPreferences file seems to do what I'm looking for. Is this the only method of getting user-defined values into a snippet? Is it possible to use a .sublime-settings file?
The .sublime-options, actually, is the .sublime-settings. .sublime-options were the ST1 files and the docs got outdated, BUT you use the wrong link, you should always check and switch in the sidebar on the left to your version - ST2, ST3.
And to answer your question, you need to put the variables in .tmPreferences as may be seen here
When browsing files in the Sublime sidebar, I would like to quickly access the commands available in the context menu via shortcuts. E.g. Delete file, rename file/folder, new file/folder.
(FYI: super+N is not an ideal solution for creating new files - it isn't context aware and will usually choose an inappropriate default location).
You can enable command logging by inserting the following into the console sublime.log_commands(True). This will give you the commands and arguments being executed. You can then create a key binding with the appropriate command. My guess is the commands will use some sort of path, so you may need to write a small plugin to inject the correct paths for the various commands.
For new file creation specifically, you may want to take a look at AdvancedNewFile. Disclaimer - I'm the current maintainer of the plugin. I've tried to make it a more flexible than it originally was, with regards to specifying where to create the file. Though if you do decide to use it and have feature request, feel free to create an issue about it.
I need to change a few values in a couple of FITs image headers to fit with some test data I have. Therefore I'm trying to hack a FITs image header at the minute to run with the application.
However at the minute - I can't even see the header, never mind hack it. I run Ubuntu.
Can anyone advise some software to view the FITs - perhaps even hack it?
Kind of old, but I think the answer could use some updates and additional information.
View .fits file
My personal favorite GUI for viewing '.fits' files is DS9. Once installed you can view a file by typing ds9 /path/to/file.fits. Alternatively you can just use the menu in the GUI to load the image. Once you load the image in the viewer, you can view the header information by using the very top menu bar and going to 'File -> Display Header'. Unfortunately, I dont believe you can modify the header in DS9.
Modify fits header
For modifying the fits header, I found the easiest is to use astropy (a python package). Since you're using Ubuntu you should be able to download it via apt-get, so hopefully pretty easily. To actually edit the fits header, you can do the following in a python script, or from the interpreter (here's some additional help):
# Import the astropy fits tools
from astropy.io import fits
# Open the file header for viewing and load the header
hdulist = fits.open('yourfile.fits')
header = hdulist[0].header
# Print the header keys from the file to the terminal
header.keys
# Modify the key called 'NAXIS1' to have a value of 100
header['NAXIS1'] = '100'
# Modify the key called 'NAXIS1' and give it a comment
header['NAXIS1'] = ('100','This value has been modified!')
# Add a new key to the header
header.set('NEWKEY','50.5')
# Save the new file
hdulist.writeto('MyNewFile.fits')
# Make sure to close the file
hdulist.close()
You could also throw this in a loop for multiple file manipulation.
If you are familiar with the python programming language, you could use the astropy module to view and manipulate fits files. Say you want to view the header of the file 'image.fits', then you do:
from astropy.io.fits import getheader
header = getheader('image.fits') # Load the data
print header # Print the header to screen
If you want to modify a particular key of the header, you do:
header['key'] = 'new_key'
edhead seems to do the job very well. Only piece of software I have found that allows you to edit the header at the command line.
Is this the Flexible Image Transport System format used by Astronomers?
This site has some background information and further links, but explains that
Users must develop or obtain separate software to read and display the data from the FITS file. There are a number of different packages for particular applications and hardware, but there is no single standard package for all applications.
Still, you can use it for your own purposes.
As only 1/2 of the question was answered (editing the FITS headers), to view the images, I commonly use DS9 (aka SAOImage).
Also, if you're going to be editing a lot of FITS headers, I tend to go with either CFITSIO or Astro::FITS::Header
... and it's possible to edit FITS headers with any text editor, so long as you follow a few simple rules -- cards (key/value/comment sets) are always 80 characters long, and the FITS header is always a multiple of 2880 bytes. Depending on the file, there might be multiple headers, as the first header could declare the file to contain multiple images or tables.
The Sloan Digital Sky Survey developer web site has some libraries that should meet your needs.
FitsLib - A library for reading and manipulating FITS files on the Microsoft's .Net platform.
FITS stands for flexible image transport system. FitsLib aims to provide an interface to the FITS file on the Dot Net Platform. It is built as an object oriented wrapper around the CFITSIO library's interface to the FITS files.
While FitsLib itself is designed for C# and the .NET Framework, you might be able to use it under Mono on your Ubuntu system. Or, perhaps you can use the CFITSIO library directly, which is written in C.