teletype | high-level cross-platform tty library | Command Line Interface library
kandi X-RAY | teletype Summary
kandi X-RAY | teletype Summary
teletype is a high-level cross platform tty library compatible with Python 3.7+. It provides a consistent interface between the terminal and cmd.exe by building on top of terminfo and msvcrt and has no dependencies.
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Top functions reviewed by kandi - BETA
- Example demo for selectone choice
- Process key presses
- Perform the prompt
- Move line by distance
- Select a single line
- Display progress bar
- Print progress bar
- List of selected lines
- Strip format from choice string
- Pretty print values
- Format a text
- Example demo function
- Example how to select many choices
- Process an iterable
- Prompt the user for a prompt
- Return highlighted line
teletype Key Features
teletype Examples and Code Snippets
Lines of Code : 22License : Permissive (MIT)
CopyIn [4]: from teletype.components import SelectOne, ChoiceHelper
...:
...: choices = [
...: ChoiceHelper(["corgi", "greyhound", "bulldog"], label="dog", style="blue"),
...: ChoiceHelper(["siamese", "chartreux", "ragdoll"], label="c from teletype.io import style_format, style_print, strip_format
# All of these will do the same thing, that is print the message in red and bold
print(style_format("I want to stand out!", "bold red"))
print(style_format("I want to stand out!", ("re from teletype.io import get_key
print("Delete C:/ Drive? [y/n]")
selection = ""
while selection.lower() not in ("y", "n"):
selection = get_key()
if selection in ("ctrl-c", "ctrl-z", "escape"):
selection = "n"
if selection == "y":
Community Discussions
Trending Discussions on teletype
QUESTION
Recently I've been trying to make an operating system for fun and I started with the bootloader. First I'd like to start by saying I asked another question about the same side effect (program not running) yesterday, but it turns out the cause is probably different than what I first thought. So, this is the bootloader code:
...ANSWER
Answered 2021-Mar-21 at 21:32You are assembling your bootloader.asm with nasm -f elf which by default causes it to assemble 32-bit code. Thus you get machine code that doesn't do the right thing when run in 16-bit real mode.
You may be able to work around by putting bits 16 at the top of your bootloader.asm file. But the ELF object file format isn't designed for 16-bit code in the first place, and trying to use it for such a small piece of code is rather absurd. I would instead suggest just building the boot sector with
QUESTION
How can i extract text from '.odt' and '.doc' format file from url using python ? I tried searching for it but couldn't find anything.
Any lead will be helpful.
...ANSWER
Answered 2021-Jan-21 at 14:42Following is tested with Python3.6 and with this test odt file;
QUESTION
I'm writing a docker script for running a python program from bitbucket, say myprogram.py. The python program uses specific functions from other files in other directories, and calls them like this:
from mydirectory.myfunction import MyFunction
Normally, if I just clone the bitbucket repository and run it, no errors occur.
My repo in bitbucket consists of the program, a docker file and some directories with scripts of functions. So I clone the repo, and then build.
When I tried to build it, it was succesful. I build it with this command:
docker build -t myprogram .
However, when I use the command (the -h is the "help" option made with argparse just to see if the program is able to run with an option):
docker run --rm -it myprogram -h
it gives me the error:
ANSWER
Answered 2021-Jan-12 at 12:49The problem with this is that you are copying mydirectory into / while your script is located in /usr/src. By default, python only looks for packages in the site-packages directory and the directory where the script is located (the current working directory is used as a fallback in case location of script is not available). So, you should copy your mydirectory in the same directory as your script (which is /usr/src). So, you have two ways to move ahead:
- Copy
mydirectoryinto/usr/src(and you may make it the working directory). - Manipulate the sys.path in your script to include the absolute path to
mydirectory.
To do this, simple put this snippet in your script before importing mydirectory
QUESTION
I'm creating a docker file from ubuntu:bionic image.
I want an ubuntu user with sudo privileges.
This is my Dockerfile
...ANSWER
Answered 2020-Dec-24 at 06:14First, you are not suggested to use sudo in docker. You could well design your behavior using USER + gosu.
But, if you insist for some uncontrolled reason, just add next line after you setup normal user:
QUESTION
A while ago I was working on a simple bootloader project and I decided to start working on it again. Anyways, I'm trying to detect memory using BIOS INT=15H EAX=E820h. I used the interrupt in a loop and allocated space for a memory map to hold all the entries. Now I'm trying to parse the entries starting from the last entry. My goal is to find the highest 1MB area I can use to hold a file I'm reading from the disk.
This is my code so far. It's being tested on Bochs 2.6.11, with 32MB of RAM and everything else set to default settings. Of course, it's 16-bit real mode code.
...ANSWER
Answered 2020-Dec-17 at 06:01Originally int 0x15, eax=0xE820 returned a 20-byte structure. This was extended to 24 bytes by a version of ACPI (I think it was ACPI 3.0 but didn't check and could be wrong) that introduced a new "flags" field to the structure.
This code allocates space on the stack for the 20 byte structure (without the extra flags field):
QUESTION
So, I'm building a mini-OS using a PDF I found online. So far, I was making decent progress on the project, however the pdf has reached a concept it doesn't really explain well.
The reader is given four examples of storing a string at a register with the intention of printing it. The fourth example is where things become confusing. Using figure 3.6 below, we find out that the string is 30 bytes away from the offset at bit '1e'.
Now, I understand why we are at 0x7cXX as it is the offset of the boot sector. What I do NOT understand is how we know that it's last 2 bits are 1e.
What I think the answer is : Well, we store the offset 0x0e to the ah register, right? And the interrupt command is 0x10 which is the low order bit of ah. The thing is, that doesn't really explain why that makes such sweeping changes to the binary version of the program in figure 3.6, and I got that from my intuition rather than any salient logic.
Why do we know the string variable is at 0x7c1e?
...ANSWER
Answered 2020-Aug-31 at 19:43Using the label is the proper way to do this, as suggested in the comments. You also will have to tell the assembler what your origin point (org) is to have it emit the correct address. Besides, you should initialise the data segment (ds) register because your memory load uses it implicitly.
I am assuming you're using NASM because the times directive is a NASMism. To fix your code and have it use a label like you should:
QUESTION
EDIT
log after Dockerfile correction (add -y parameters)
...ANSWER
Answered 2020-Aug-28 at 08:37The Docker build is failing because the apt command prompts the user for confirmation. To fix this, you can use the -y flag to install silently:
QUESTION
I am trying to understand method to overwrite environment variable inside running docker container.
I tried below options as suggested over other SO posts. Every time I set env variable via docker exec -e it shows me env variable as set. On the very next run it disappears.
Command to start docker:
...ANSWER
Answered 2020-Aug-08 at 09:52Environmentvariables are scoped within the runtime of your docker container. That means, when you start the container, it will be the var you set at the beginning.
A Container is not persistent, means, when you start an image in a container, it is created by scratch, is has no memory about the last run.
Depending on what you are trying to achieve you need another solution.
QUESTION
I am currently in the process of fixing a bootloader I wrote to load my custom real-mode x86 kernel (SYS.BIN). I managed to get it to read the root directory and FAT, and load a small-ish kernel from the filesystem, all within the bootsector. However, I began testing it with larger kernels, and it seems that the bootloader will not load more than one cluster. I checked my code against another similar bootloader, and it seems to be doing effectively the same thing when it comes to loading multi-cluster files. The main difference is that I am loading the first FAT into segment 0x3000 and the root directory into segment 0x3800, so that they will be accessible to the kernel. (Did I mess up segmentation at all?)
I should probably mention that I'm testing this by compiling with NASM, writing the resulting BOOT.BIN file to the first sector of a raw 32M image, mounting it on a loop device, copying SYS.BIN over, and creating a new image of that loop device, which I then throw into QEMU as a hard drive. I know with certainty that it is only loading the first cluster of the file.
In particular, I believe the code that is causing the issue is likely in here:
...ANSWER
Answered 2020-Jul-29 at 15:30Your mov ax, word [ds:si] has an unneeded ds segment override.
This is also related to your problem with the variables, the memory accesses use ds as the default segment. So after mov ax, 0x3000 \ mov ds, ax you are not accessing your original variables any longer.
You have to reset ds to 7C0h, as your loader uses the default org 0. Your print_str function does reset ds like that. But the mov si, word [cluster] and everything between the FAT word access in .next_cluster and up to .jump uses the wrong ds. To correct this, change your code like this for example:
QUESTION
I have this program which I want to write the string to the screen, but the output is empty, I have added comments at every line.
...ANSWER
Answered 2020-Apr-22 at 19:14The POP BX instruction does not do what you seem to assume. It takes a value from the stack and stores it in BX. It does not access the memory that BX points to. You need something like MOV AL, [BX] to retrieve a character pointed to by BX, and then an instruction to make BX point to the next character.
Also, you don't properly terminate your program. CALL saves the current position and then starts printing the string. When you RETurn, the processor continues execution after the CALL instruction. You need something to tell the processor to stop executing stuff, or it might try to print some more things it shouldn't print.
As you mentioned in a comment, you use a boot sector in qemu. There seems to be no concept of telling qemu to exit, so you should block in your program. A typical way to achieve that is the sequence of the instruction CLI to tell the processor that it should not handle any interrupts, followed by the instruction HLT, which tells the processor to not do anything until it handled an interrupt. As you blocked interrupts, the HLT instruction will wait forever.
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Install teletype
You can use teletype like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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