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General Tech Bugs & Fixes 2 years ago
Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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i have the following code:
class Commit:
id = 0 commits = [] def __init__(self, message=None, changes=None): Commit.id += 1 self.id = Commit.id self.message = tuple([message]) self.changes = tuple(changes) Commit.commits.append(self.message + self.changes) self.commits = Commit.commits self.next = None
class Branch:
def __init__(self): self.tail = None self.head = None def new_commit(self, commit): if not self.head: self.head = commit self.tail = self.head else: self.tail.next = commit self.tail = self.tail.next
class Repository:
branches = {} def __init__(self, name): self.name = name self.branches = Repository.branches def branch(self, branch_name): self.branch_name = Branch() self.branches[branch_name] = self.branch_name return self.branches[branch_name]
but when i do this to instantiate it:
repo = Repository("syllabus 2.0") repo.branch("master").new_commit(Commit(message="add readme", changes=[("CREATE", "README.md")])) print(repo.branch("master").head)
it prints None Why is this happening?
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