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Learning/Knowledge checks/Scripting for EDA Automation/Python log parsing and reports/Check

Module checkpoint

Python log parsing and reports knowledge check

Answer every question from your current understanding. After submission, compare your reasoning with the explanation and revisit any weak concept.

This check covers Python log parsing and reports. Read it first if you have not.

5 QuestionsOne Answer eachImmediate ScoreDetailed Explanations

Read→Reason→Select→Review

Question 1 of 5Why are Python regular expressions usually written as raw strings such as r'\d+'?

Backslashes reach the regex engine without Python treating them as escapesRaw strings make the regex engine ignore upper and lower caseRaw strings make the pattern match only at the start of a line

Question 2 of 5What is the difference between `pattern.match(line)` and `pattern.search(line)`?

match returns every hit; search returns only the first hitmatch ignores case by default; search is always case sensitivematch only tries the start of the string; search looks anywhere

Question 3 of 5Why are numbers and hex values replaced before counting failure signatures?

So private design values are encrypted before they are writtenSo failures with the same cause but different data are grouped togetherSo the report file becomes small enough to open in a spreadsheet

Question 4 of 5Which call converts a dataclass instance to a dictionary suitable for json.dump?

dataclasses.asdict(result)dataclasses.fields(result)dataclasses.replace(result)

Question 5 of 5Why should a CSV file be opened with newline='' when using the csv module?

The csv module cannot write any file that already ends in a newlineThe csv module needs it to put the header row on the first lineThe csv module handles line endings itself and otherwise blank rows can appear

Review every selection before submitting. You can retry after reading the explanations.

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