大约有 5,570 项符合查询结果（耗时：0.0335秒） [XML]
best way to preserve numpy arrays on disk
... = [ 'pickle', 'h5py', 'pickle+gzip', 'pickle+lzma', 'pickle+bz2' ]
size = 1000
data = {}
# Random data
data['random'] = np.random.random((size, size))
# Not that random data
data['semi-random'] = np.zeros((size, size))
for i in range(size):
for j in range(size):
data['semi-random'][i...
Querying DynamoDB by date
...doing a scan, which will be costly in reads and in time (and is limited to 100 items I believe).
This may not be the best way of doing it but for someone used to RD (I'm also used to SQL) it's the fastest way to get productive. Since there is no constraints in regards to schema, you can whip up som...
Is it safe to shallow clone with --depth 1, create commits, and pull updates again?
...ds in the comments:
To backfill part of the history: git fetch --depth=100.
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Surrogate vs. natural/business keys [closed]
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100
Both. Have your cake and eat it.
Remember there is nothing special about a primary key, exce...
UnboundLocalError on local variable when reassigned after first use
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Charlie MartinCharlie Martin
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Why aren't programs written in Assembly more often? [closed]
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If an average production program has say 100k lines of code, and each line is about 8-12 assembler instructions, that would be 1 million of assembler instructions.
Even if you could write all this by hand at a decent speed (remember, its 8 times more code that you...
MySQL: multiple tables or one table with many columns?
...s). In my problem table (data from very lengthy insurance forms, more than 100 columns) we have multiple varchar columns, all UTF8. So we easily filled the ~8000 bytes limit and got "error 139 from storage engine" all the time. So we had to split the table. (We tested with the newer Barracuda format...
Django ModelForm: What is save(commit=False) used for?
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Let's go to 100 :)
– dani herrera
May 27 at 16:00
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Set cURL to use local virtual hosts
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+100
Does the server actually get the requests, and are you handling the host name (alias) properly?
after adding to my .hosts file
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Is it possible to dynamically compile and execute C# code fragments?
...Main(string[] args) {
var q = from i in Enumerable.Range(1,100)
where i % 2 == 0
select i;
}
}");
results.Errors.Cast<CompilerError>().ToList().ForEach(error => Console.WriteLine(error.Erro...