Python numpy 模块，base_repr() 实例源码
我们从Python开源项目中，提取了以下25个代码示例，用于说明如何使用numpy.base_repr()。
def test_base3(self):
assert_equal(np.base_repr(3**5, 3), '100000')
def test_positive(self):
assert_equal(np.base_repr(12, 10), '12')
assert_equal(np.base_repr(12, 10, 4), '000012')
assert_equal(np.base_repr(12, 4), '30')
assert_equal(np.base_repr(3731624803700888, 36), '10QR0ROFCEW')
def test_negative(self):
assert_equal(np.base_repr(-12, 10), '-12')
assert_equal(np.base_repr(-12, 10, 4), '-000012')
assert_equal(np.base_repr(-12, 4), '-30')
def base_repr(number, base=2, padding=0): # NOQA (needed to avoid redefinition of `number`)
"""Return a string representation of a number in the given base system.
.. seealso:: :func:`numpy.base_repr`
"""
return numpy.base_repr(number, base, padding)
# -----------------------------------------------------------------------------
# Linear algebra
# -----------------------------------------------------------------------------
def test_base3(self):
assert_equal(np.base_repr(3**5, 3), '100000')
def test_positive(self):
assert_equal(np.base_repr(12, 10), '12')
assert_equal(np.base_repr(12, 10, 4), '000012')
assert_equal(np.base_repr(12, 4), '30')
assert_equal(np.base_repr(3731624803700888, 36), '10QR0ROFCEW')
def test_negative(self):
assert_equal(np.base_repr(-12, 10), '-12')
assert_equal(np.base_repr(-12, 10, 4), '-000012')
assert_equal(np.base_repr(-12, 4), '-30')
def base32(i):
return np.base_repr(i, base=32)
def test_base3(self):
assert_equal(np.base_repr(3**5, 3), '100000')
def test_positive(self):
assert_equal(np.base_repr(12, 10), '12')
assert_equal(np.base_repr(12, 10, 4), '000012')
assert_equal(np.base_repr(12, 4), '30')
assert_equal(np.base_repr(3731624803700888, 36), '10QR0ROFCEW')
def test_negative(self):
assert_equal(np.base_repr(-12, 10), '-12')
assert_equal(np.base_repr(-12, 10, 4), '-000012')
assert_equal(np.base_repr(-12, 4), '-30')
def test_base3(self):
assert_equal(np.base_repr(3**5, 3), '100000')
def test_positive(self):
assert_equal(np.base_repr(12, 10), '12')
assert_equal(np.base_repr(12, 10, 4), '000012')
assert_equal(np.base_repr(12, 4), '30')
assert_equal(np.base_repr(3731624803700888, 36), '10QR0ROFCEW')
def test_negative(self):
assert_equal(np.base_repr(-12, 10), '-12')
assert_equal(np.base_repr(-12, 10, 4), '-000012')
assert_equal(np.base_repr(-12, 4), '-30')
def test_base3(self):
assert_equal(np.base_repr(3**5, 3), '100000')
def test_positive(self):
assert_equal(np.base_repr(12, 10), '12')
assert_equal(np.base_repr(12, 10, 4), '000012')
assert_equal(np.base_repr(12, 4), '30')
assert_equal(np.base_repr(3731624803700888, 36), '10QR0ROFCEW')
def test_negative(self):
assert_equal(np.base_repr(-12, 10), '-12')
assert_equal(np.base_repr(-12, 10, 4), '-000012')
assert_equal(np.base_repr(-12, 4), '-30')
def test_base3(self):
assert_equal(np.base_repr(3**5, 3), '100000')
def test_positive(self):
assert_equal(np.base_repr(12, 10), '12')
assert_equal(np.base_repr(12, 10, 4), '000012')
assert_equal(np.base_repr(12, 4), '30')
assert_equal(np.base_repr(3731624803700888, 36), '10QR0ROFCEW')
def test_negative(self):
assert_equal(np.base_repr(-12, 10), '-12')
assert_equal(np.base_repr(-12, 10, 4), '-000012')
assert_equal(np.base_repr(-12, 4), '-30')
def test_base_range(self):
with self.assertRaises(ValueError):
np.base_repr(1, 1)
with self.assertRaises(ValueError):
np.base_repr(1, 37)
def test_base3(self):
assert_equal(np.base_repr(3**5, 3), '100000')
def test_positive(self):
assert_equal(np.base_repr(12, 10), '12')
assert_equal(np.base_repr(12, 10, 4), '000012')
assert_equal(np.base_repr(12, 4), '30')
assert_equal(np.base_repr(3731624803700888, 36), '10QR0ROFCEW')
def test_negative(self):
assert_equal(np.base_repr(-12, 10), '-12')
assert_equal(np.base_repr(-12, 10, 4), '-000012')
assert_equal(np.base_repr(-12, 4), '-30')
def base_repr(number, base=2, padding=0):
"""
Return a string representation of a number in the given base system.
Parameters
----------
number : int
The value to convert. Positive and negative values are handled.
base : int, optional
Convert `number` to the `base` number system. The valid range is 2-36,
the default value is 2.
padding : int, optional
Number of zeros padded on the left. Default is 0 (no padding).
Returns
-------
out : str
String representation of `number` in `base` system.
See Also
--------
binary_repr : Faster version of `base_repr` for base 2.
Examples
--------
>>> np.base_repr(5)
'101'
>>> np.base_repr(6, 5)
'11'
>>> np.base_repr(7, base=5, padding=3)
'00012'
>>> np.base_repr(10, base=16)
'A'
>>> np.base_repr(32, base=16)
'20'
"""
digits = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'
if base > len(digits):
raise ValueError("Bases greater than 36 not handled in base_repr.")
elif base < 2:
raise ValueError("Bases less than 2 not handled in base_repr.")
num = abs(number)
res = []
while num:
res.append(digits[num % base])
num //= base
if padding:
res.append('0' * padding)
if number < 0:
res.append('-')
return ''.join(reversed(res or '0'))