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How do you read a file into a list in Python? [duplicate]
...a file. He gave us that part. The part we have to do is to open that file, convert the numbers into a list, then find the mean, standard deviation, etc. without using the easy built-in Python tools.
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Remove empty array elements
... that if no callback is supplied, all entries of array equal to FALSE (see converting to boolean) will be removed. So if you need to preserve elements that are i.e. exact string '0', you will need a custom callback:
// PHP 7.4 and later
print_r(array_filter($linksArray, fn($value) => !is_null($v...
Default parameters with C++ constructors [closed]
... you have defaults for all but one parameter, your class can be implicitly converted from that parameter type. Check out this thread for more info.
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How can I check if a string represents an int, without using try/except?
...integer part before the decimal, unless the floating point number is first converted to a string.
The check_int() function returns false for values like 0.0 and 1.0 (which technically are integers) and returns true for values like '06'.
Here are the current (Python 3.5) test results:
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Can you add new statements to Python's syntax?
...hon uses a custom parser generator named pgen. This is a LL(1) parser that converts Python source code into a parse tree. The input to the parser generator is the file Grammar/Grammar[1]. This is a simple text file that specifies the grammar of Python.
[1]: From here on, references to files in the ...
MySQL Cannot Add Foreign Key Constraint
...mand to set the encoding and collation for a table.
ALTER TABLE tablename CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci;
I hope this helps someone.
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pdf2htmlEX实现pdf转html - 开源 & Github - 清泛网 - 专注C/C++及内核技术
... fstype bits in TTF/OTF fonts (default:0)
--process-type3 <int> convert Type 3 fonts for web (experimental) (default: 0)
--heps <fp> 合并文本的水平临界值，单位：像素(default: 1)
--veps <fp> vertical threshold for merging text, in p...
Should you declare methods using overloads or optional parameters in C# 4.0?
...variably conflict with an optional parameter form, and then you'll have to convert them to non-optional anyway.
And I like the notion that there's generally one super method, and the rest are simpler wrappers around that one.
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Import pandas dataframe column as string not int
...t the following csv as strings not as int64. Pandas read_csv automatically converts it to int64, but I need this column as string.
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round() for float in C++
... which says (emphasis mine):
A prvalue of a floating point type can be converted to a prvalue of an
integer type. The conversion truncates; that is, the fractional part
is discarded. The behavior is undefined if the truncated value cannot
be represented in the destination type.[...]
For ...