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[Dy2stat]show paddle traceback after last user code traceback #36741

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Oct 27, 2021
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[Dy2stat]show paddle traceback after last user code traceback #36741

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93 changes: 61 additions & 32 deletions python/paddle/fluid/dygraph/dygraph_to_static/error.py
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Original file line number Diff line number Diff line change
Expand Up @@ -122,7 +122,7 @@ def formated_message(self):
msg = ' ' * BLANK_COUNT_BEFORE_FILE_STR + 'File "{}", line {}, in {}\n'.format(
self.location.filepath, self.location.lineno, self.function_name)
# add empty line after range code
return msg + '\n'.join(self.source_code) + '\n'
return msg + '\n'.join(self.source_code)


class SuggestionDict(object):
Expand Down Expand Up @@ -183,24 +183,39 @@ def create_message(self):
return '\n'.join(message_lines)

# Step2: Optimizes stack information with source code information of dygraph from user.
whether_source_range = True
for filepath, lineno, funcname, code in self.origin_traceback[::-1]:
loc = Location(filepath, lineno)
dygraph_func_info = self.origin_info_map.get(loc.line_location,
user_code_traceback_index = []
for i, (filepath, lineno, funcname,
code) in enumerate(self.origin_traceback):
dygraph_func_info = self.origin_info_map.get((filepath, lineno),
None)
if dygraph_func_info:
if whether_source_range:
traceback_frame = TraceBackFrameRange(
dygraph_func_info.location,
dygraph_func_info.function_name)
whether_source_range = False
else:
traceback_frame = TraceBackFrame(
dygraph_func_info.location,
dygraph_func_info.function_name,
dygraph_func_info.source_code)
# Two elements already exist in message_lines: "In transformed code:" and "", so insert in index 2
message_lines.insert(2, traceback_frame.formated_message())
user_code_traceback_index.append(i)

# Add user code traceback
for i in user_code_traceback_index:
filepath, lineno, funcname, code = self.origin_traceback[i]
dygraph_func_info = self.origin_info_map.get((filepath, lineno),
None)
if i == user_code_traceback_index[-1]:
traceback_frame = TraceBackFrameRange(
dygraph_func_info.location, dygraph_func_info.function_name)
else:
traceback_frame = TraceBackFrame(
dygraph_func_info.location, dygraph_func_info.function_name,
dygraph_func_info.source_code)

message_lines.append(traceback_frame.formated_message())
message_lines.append("")

# Add paddle traceback after user code traceback
paddle_traceback_start_idnex = user_code_traceback_index[
-1] + 1 if user_code_traceback_index else 0
for filepath, lineno, funcname, code in self.origin_traceback[
paddle_traceback_start_idnex:]:
traceback_frame = TraceBackFrame(
Location(filepath, lineno), funcname, code)
message_lines.append(traceback_frame.formated_message())
message_lines.append("")

# Step3: Adds error message like "TypeError: dtype must be int32, but received float32".
# NOTE: `format_exception` is a list, its length is 1 in most cases, but sometimes its length
Expand Down Expand Up @@ -258,8 +273,9 @@ def _simplify_error_value(self):
bottom_error_message = error_value_lines[empty_line_idx + 1:]
revise_suggestion = self._create_revise_suggestion(bottom_error_message)

filepath = ''
error_from_user_code = []
user_filepath = ''
error_traceback = []
user_code_traceback_index = []
pattern = 'File "(?P<filepath>.+)", line (?P<lineno>.+), in (?P<function_name>.+)'
for i in range(0, len(error_value_lines_strip), 2):
if error_value_lines_strip[i].startswith("File "):
Expand All @@ -268,22 +284,35 @@ def _simplify_error_value(self):
code = error_value_lines_strip[i + 1] if i + 1 < len(
error_value_lines_strip) else ''
if i == 0:
filepath = tmp_filepath
if tmp_filepath == filepath:
error_from_user_code.append(
(tmp_filepath, int(lineno_str), function_name, code))
user_filepath = tmp_filepath
if tmp_filepath == user_filepath:
user_code_traceback_index.append(len(error_traceback))

error_traceback.append(
(tmp_filepath, int(lineno_str), function_name, code))

error_frame = []
whether_source_range = True
for filepath, lineno, funcname, code in error_from_user_code[::-1]:
loc = Location(filepath, lineno)
if whether_source_range:
traceback_frame = TraceBackFrameRange(loc, funcname)
whether_source_range = False
# Add user code traceback
for i in user_code_traceback_index:
filepath, lineno, funcname, code = error_traceback[i]
if i == user_code_traceback_index[-1]:
traceback_frame = TraceBackFrameRange(
Location(filepath, lineno), funcname)
else:
traceback_frame = TraceBackFrame(loc, funcname, code)

error_frame.insert(0, traceback_frame.formated_message())
traceback_frame = TraceBackFrame(
Location(filepath, lineno), funcname, code)
error_frame.append(traceback_frame.formated_message())
error_frame.append("")

# Add paddle traceback after user code traceback
paddle_traceback_start_idnex = user_code_traceback_index[
-1] + 1 if user_code_traceback_index else 0
for filepath, lineno, funcname, code in error_traceback[
paddle_traceback_start_idnex:]:
traceback_frame = TraceBackFrame(
Location(filepath, lineno), funcname, code)
error_frame.append(traceback_frame.formated_message())
error_frame.append("")

error_frame.extend(bottom_error_message)
error_frame.extend(revise_suggestion)
Expand Down