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Format a datetime into a string with milliseconds

...%d %H:%M:%S.%f')[:-3] >>>> OUTPUT >>>> 2020-05-04 10:18:32.926 Note: For Python3, print requires parentheses: print(datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3]) share | ...
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SQL Server Operating system error 5: “5(Access is denied.)”

...o read/write in the new folder. Check out this To fix, I did the following: Added the Administrators Group to the file security permissions with full control for the Data file (S:) and the Log File (T:). Attached the database and it works fine. ...
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How to list all installed packages and their versions in Python?

... To expand on @exhuma's comment, with pip 10 you should use: import pkg_resources [print(d.project_name) for d in pkg_resources.working_set] – Almenon Jul 14 '18 at 23:16 ...
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Map Tiling Algorithm

... could you expand this a bit more? i m curious, and i can't understand your explanation. How does one use the average colour value after you've done the iterations? – Chii Oct 20 '13 at 2:17 ...
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How do I remove a key from a JavaScript object? [duplicate]

... answered Aug 11 '10 at 5:01 jessegavinjessegavin 64.2k2626 gold badges135135 silver badges162162 bronze badges ...
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Windows Explorer “Command Prompt Here” [closed]

I frequently find myself with a folder open in Windows, wishing to have a command prompt open with the same working directory. ...
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A simple explanation of Naive Bayes Classification

...bilities(c.hypothesis) c.classify() output: Priori Values: {'yes': 0.6428571428571429, 'no': 0.35714285714285715} Calculated Conditional Probabilities: { 'no': { '<=30': 0.8, 'fair': 0.6, 'medium': 0.6, 'yes': 0.4 }, 'yes': { '<=30': ...
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What is “overhead”?

...s a built-in overhead of 8 bytes due to the allocator (assuming classic 32-bit machine) consisting of the size of the block plus guard values. And that's before you even think about allocation granularity. A singly-linked list of simple 4-byte integers will therefore have an overhead of 75%; arrays ...
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Regex to validate date format dd/mm/yyyy

....)(?:(?:0?[1-9])|(?:1[0-2]))\4(?:(?:1[6-9]|[2-9]\d)?\d{2})$ I tested it a bit in the link Arun provided in his answer and also here and it seems to work. Edit February 14th 2019: I've removed a comma that was in the regex which allowed dates like 29-0,-11 ...
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How does one create an InputStream from a String? [duplicate]

... WhiteFang34WhiteFang34 64.7k1717 gold badges9696 silver badges107107 bronze badges a...