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  2. Levenshtein distance - Wikipedia

    en.wikipedia.org/wiki/Levenshtein_distance

    In information theory, linguistics, and computer science, the Levenshtein distance is a string metric for measuring the difference between two sequences. The Levenshtein distance between two words is the minimum number of single-character edits (insertions, deletions or substitutions) required to change one word into the other.

  3. Concatenation - Wikipedia

    en.wikipedia.org/wiki/Concatenation

    In formal language theory and pattern matching (including regular expressions), the concatenation operation on strings is generalised to an operation on sets of strings as follows: For two sets of strings S 1 and S 2, the concatenation S 1 S 2 consists of all strings of the form vw where v is a string from S 1 and w is a string from S 2, or ...

  4. Python syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/Python_syntax_and_semantics

    For example, one could define a dictionary having a string "toast" mapped to the integer 42 or vice versa. The keys in a dictionary must be of an immutable Python type, such as an integer or a string, because under the hood they are implemented via a hash function. This makes for much faster lookup times, but requires keys not change.

  5. Escape character - Wikipedia

    en.wikipedia.org/wiki/Escape_character

    The backslash (\) escape character typically provides two ways to include double-quotes inside a string literal, either by modifying the meaning of the double-quote character embedded in the string (\" becomes "), or by modifying the meaning of a sequence of characters including the hexadecimal value of a double-quote character (\x22 becomes ").

  6. 2 Teenagers Dead and Sister in Critical Condition after Car ...

    www.aol.com/2-teenagers-dead-sister-critical...

    One 17-year-old was pronounced dead at the scene. Two other victims were transported to a local hospital where another 17-year-old died on Dec. 12 and a third teenage girl remains in stable condition.

  7. pandas (software) - Wikipedia

    en.wikipedia.org/wiki/Pandas_(software)

    By default, a Pandas index is a series of integers ascending from 0, similar to the indices of Python arrays. However, indices can use any NumPy data type, including floating point, timestamps, or strings. [4]: 112 Pandas' syntax for mapping index values to relevant data is the same syntax Python uses to map dictionary keys to values.

  8. Best Black Friday handbag & purse deals you can still shop ...

    www.aol.com/lifestyle/best-black-friday-handbag...

    It comes in two shades — black and brown — and features a golden C on the front flap. It normally retails for $895, but during Black Friday, you can score it for just $627. $627 at Coach

  9. Head of key Japan opposition party admits to extra-marital affair

    www.aol.com/news/head-key-japan-opposition-party...

    By Satoshi Sugiyama. TOKYO (Reuters) -Yuichiro Tamaki, the head of the Japanese opposition party that has emerged as kingmaker as lawmakers select the next prime minister on Monday, said a tabloid ...