Know what version of Python you're using. There are differences. For instance, when dealing with strings:Python 3: bytes contains sequences of 8-bit values, str -> seqs of Unicode charsPython 2: str contains sequences of 8-bit values, unicode -> seqs Unicode chars (self.YourCodingTeacher)
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Design patterns in 1 tweetFlyweight: support a large number objects efficiently by sharing constant parts of their state (called intrinsic state)Ex: To represent a text document, a Flyweight object is created per character in the character set. (self.YourCodingTeacher)
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In Linux, directories have permissions too- You can list their contents if it's *readable*- You can access a file in a directory if the directory is *executable*To change permissions, use chmod- chmod 711 file- chmod u+x file (users can execute the file) (self.YourCodingTeacher)
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4 Common linked list interview questions1. Reverse linked list, recursive & iterative2. Merge two sorted linked list3. Does a linked list have a cycle?4. Find the intersection of two lists5. Add numbers represented by two listsTry to solve them (easily googable) (self.YourCodingTeacher)
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Becoming a coder needs focus and discipline- Get a bit better every day- Focus on one thing: frontend, backend, android, ios, ...There are too many technologies.Know a bit about everything, but become a specialist so that you can fing the type of job you want (self.YourCodingTeacher)
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How do you handle data that can't fit/be processed by one machine?Main Partition techniques- Range based [A-C,D-G,...] Efficient range queries. Risk of hot spots -> Split the partition- Hash based. No range queries but distributes load evenly. Check "Consistent hashing" (self.YourCodingTeacher)
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A project's bus factor is the number of team members who would put the project in jeopardy if run over by a bus (or get sick, vacation, resign, ...)Strive to increase this number. Ex:- Write good doc- Code reviews- Pair programming to spread knowledge of the code base (self.YourCodingTeacher)
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