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Set sys.ps1 to let some programs know they are run in a REPL #593

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Set sys.ps1 to let some programs know they are run in a REPL #593

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7 changes: 7 additions & 0 deletions ptpython/prompt_style.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
from __future__ import annotations

import sys
from abc import ABCMeta, abstractmethod
from typing import TYPE_CHECKING

Expand All @@ -14,7 +15,12 @@
class PromptStyle(metaclass=ABCMeta):
"""
Base class for all prompts.

It will set `sys.ps1` to let some programs know they are run in a REPL.
See: https://github.com/TylerYep/torchinfo/issues/216
"""
def __init__(self) -> None:
sys.ps1 = getattr(sys, "ps1", ">>> ")

@abstractmethod
def in_prompt(self) -> AnyFormattedText:
Expand Down Expand Up @@ -43,6 +49,7 @@ class IPythonPrompt(PromptStyle):
"""

def __init__(self, python_input: PythonInput) -> None:
super().__init__()
self.python_input = python_input

def in_prompt(self) -> AnyFormattedText:
Expand Down