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from ..ft_gettext import current_lang
from ..message_parser import get_parser
from ..tb_data import TracebackData # for type checking only
from ..typing_info import CauseInfo # for type checking only
parser = get_parser(OSError)
_ = current_lang.translate
@parser._add
def handle_connection_error(_message: OSError, tb_data: TracebackData) -> CauseInfo:
tb = "\n".join(tb_data.formatted_tb)
if (
"socket.gaierror" in tb
or "urllib.error" in tb
or "urllib3.exception" in tb
or "requests.exception" in tb
):
cause = _(
"I suspect that you are trying to connect to a server and\n"
"that a connection cannot be made.\n\n"
"If that is the case, check for typos in the URL\n"
"and check your internet connectivity.\n"
)
return {"cause": cause}
return {}
@parser._add
def invalid_argument(message: str, tb_data: TracebackData) -> CauseInfo:
if "Invalid argument:" not in message:
return {}
value = tb_data.value
filename = value.filename
repr_filename = repr(filename)
if "\\" not in filename and "\\" in repr_filename:
hint = _("Perhaps you need to double the backslash characters.\n")
cause = _(
"I suspect that you wrote a filename or path that contains\n"
"at least one backslash character, `\\`.\n"
"Python likely interpreted this as indicating the beginning of\n"
"what is known as an escape sequence.\n"
"To solve the problem, either write a so-called 'raw string'\n"
"by adding the letter `r` as a prefix in\n"
"front of the filename or path, or replace all single backslash\n"
"characters, `\\`, by double ones: `\\\\`.\n"
)
return {"cause": cause, "suggest": hint}
return {}
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