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gh-117174: Add a new route in linecache to fetch interactive source code (#117500)

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Pablo Galindo Salgado 2025-03-10 21:54:05 +00:00 • committed by GitHub
parent ecdf6b15b0
commit a931a8b324
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GPG key ID: B5690EEEBB952194
16 changed files with 142 additions and 93 deletions
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20
Lib/traceback.py
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@ -288,11 +288,11 @@ class FrameSummary:
"""
__slots__ = ('filename', 'lineno', 'end_lineno', 'colno', 'end_colno',
'name', '_lines', '_lines_dedented', 'locals')
'name', '_lines', '_lines_dedented', 'locals', '_code')
def __init__(self, filename, lineno, name, *, lookup_line=True,
locals=None, line=None,
end_lineno=None, colno=None, end_colno=None):
end_lineno=None, colno=None, end_colno=None, **kwargs):
"""Construct a FrameSummary.
:param lookup_line: If True, `linecache` is consulted for the source
@ -308,6 +308,7 @@ class FrameSummary:
self.colno = colno
self.end_colno = end_colno
self.name = name
self._code = kwargs.get("_code")
self._lines = line
self._lines_dedented = None
if lookup_line:
@ -347,7 +348,10 @@ class FrameSummary:
lines = []
for lineno in range(self.lineno, self.end_lineno + 1):
# treat errors (empty string) and empty lines (newline) as the same
lines.append(linecache.getline(self.filename, lineno).rstrip())
line = linecache.getline(self.filename, lineno).rstrip()
if not line and self._code is not None and self.filename.startswith("<"):
line = linecache._getline_from_code(self._code, lineno).rstrip()
lines.append(line)
self._lines = "\n".join(lines) + "\n"
@property
@ -484,9 +488,13 @@ class StackSummary(list):
f_locals = f.f_locals
else:
f_locals = None
result.append(FrameSummary(
filename, lineno, name, lookup_line=False, locals=f_locals,
end_lineno=end_lineno, colno=colno, end_colno=end_colno))
result.append(
FrameSummary(filename, lineno, name,
lookup_line=False, locals=f_locals,
end_lineno=end_lineno, colno=colno, end_colno=end_colno,
_code=f.f_code,
)
)
for filename in fnames:
linecache.checkcache(filename)