大约有 5,570 项符合查询结果(耗时:0.0350秒) [XML]

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Pandas read_csv low_memory and dtype options

... @nealmcb You can read the dataframe with nrows=100 as an argument and then do df.dtypes to see the dtypes you get. However, when reading the whole dataframe with these dtypes, be sure to do a try/except so you catch faulty dtype guesses. Data is dirty you know. ...
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How can you search Google Programmatically Java API [closed]

...me as a normal browser google search. Currently (date of answer) you get 100 api calls per day for free, then google like to share your profit. share | improve this answer | ...
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Why is Java's SimpleDateFormat not thread-safe? [duplicate]

... BozhoBozho 539k129129 gold badges10061006 silver badges11101110 bronze badges ...
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What does “DAMP not DRY” mean when talking about unit tests?

... +100 It's a balance, not a contradiction DAMP and DRY are not contradictory, rather they balance two different aspects of a code's maint...
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Difference between String#equals and String#contentEquals methods

... +100 This answer was already posted by dbw but he deleted it but he had some very valid points for the difference while comparing executi...
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How can I modify the size of column in a MySQL table?

... @Flimm - just a pointer, if you have a VARCHAR(100) and you change it to VARCHAR(50) it will cut any existing data from columns. As per this specific question though, making a column larger won't have an issue with the data. – Warren Sergent ...
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Why do you have to call .items() when iterating over a dictionary in Python?

... -- which is a check I believe I may have performed, or wanted to perform, 100 times more rarely than what if k in C actually means, checking the presence of the key only and completely ignoring the value. On the other hand, wanting to loop just on keys is quite common, e.g.: for k in thedict: ...
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How to do parallel programming in Python?

...s (including the complete graph G) over and over to workers in each of the 1000 iterations. Since at least one worker will reside on a different process, this involves copying and sending the arguments to the other process(es). This could be very costly depending on the size of the objects. Instead,...
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What is the purpose of @SmallTest, @MediumTest, and @LargeTest annotations in Android?

...rks, etc. Per the Android Developers blog, a small test should take < 100ms, a medium test < 2s, and a large test < 120s. See this page (search for "@SmallTest") on how to specify which tests get run. share ...
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Disable browser 'Save Password' functionality

...ad and "removed" the autocomplete support as well. For details see comment 100 in the following issue discussion: bugzilla.mozilla.org/show_bug.cgi?id=956906 – Bouncing Bit Dec 18 '14 at 8:51 ...