def bindiff(bfile1,bfile2): """ compare 2 binary files and show all differing bit locations/indices, one index per line in: binary file 1, binary file 2 for bit-wise comparison. out: Optionally store the flipped-bit index [one index location per line] in a output file 'ebitlog' "...
本文简要介绍 python 语言中 numpy.char.compare_chararrays 的用法。 用法: char.compare_chararrays(a1, a2, cmp, rstrip)使用cmp_op 指定的比较运算符对两个字符串数组执行逐元素比较。参数: a1, a2: array_like 要比较的数组。 cmp: {“<”、“<=”、“==”、“>=”、“>”、“!=”} 比较类型...
struct is used with bytes, bytearray, and memoryview objects. As we’ve seen in “Memory Views”, the memoryview class does not let you create or store byte sequences, but provides shared memory access to slices of data from other binary sequences, packed arrays, and buffers such as ...
Another new method, assertCountEqual() is used to compare two iterables to determine if their element counts are equal (whether the same elements are present with the same number of occurrences regardless of order): def test_anagram(self): self.assertCountEqual('algorithm', 'logarithm') (由...
How do these two equivalent functions compare in terms of performance? In this particular case, the vectorized NumPy call wins out by a factor of about 70 times:Python >>> from timeit import timeit >>> setup = 'from __main__ import count_transitions, x; import numpy as np' >>> ...
Comparison Operators Compare two values and return a boolean (True or False) based on the comparison. ==, !=, >, <, >=, <= Logical Operators Combine conditions and perform logical operations like AND, OR, and NOT. and, or, not Identity Operators Compare the memory addresses of objects ...
In Python 2, that worked, because aStr and aBuf were strings, and aStr[0] would be a string, and you can compare strings for inequality. But in Python 3, aStr and aBuf are byte arrays, aStr[0] is an integer, and you can’t compare integers and strings for inequality without ...
struct CompareBatch : public std::binary_function { bool operator()( const Batch* pBatchA, const Batch* pBatchB ) const { return ( pBatchA->getPriority() > pBatchB->getPriority() ); }//operator() };//CompareBatch //--- //empties the batches according to priority. If emptyAll is ...
The operators is and is not compare whether two objects are really the same object; this only matters for mutable objects like lists. All comparison operators have the same priority, which is lower than that of all numerical operators.
Another direction to take may be to look at multithreading, if you don't need ordered output. If you have many thousands of sequences stored in memory, you could split an array of sequences up into smaller arrays by use of offsets or array indices. Each ...