python 2.7 -1
2016-08-01 19:46
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Python 2.7 (r27:82525, Jul 4 2010, 09:01:59) [MSC v.1500 32 bit (Intel)] on win32 Type "copyright", "credits" or "license()" for more information. >>> c=arrange(24).reshape(2,3,4) Traceback (most recent call last): File "<pyshell#0>", line 1, in <module> c=arrange(24).reshape(2,3,4) NameError: name 'arrange' is not defined >>> c=arange(24).reshape(2,3,4) Traceback (most recent call last): File "<pyshell#1>", line 1, in <module> c=arange(24).reshape(2,3,4) NameError: name 'arange' is not defined >>> c = arange(24).reshape(2,3,4) Traceback (most recent call last): File "<pyshell#2>", line 1, in <module> c = arange(24).reshape(2,3,4) NameError: name 'arange' is not defined >>> a =array([20,30,40,50]) Traceback (most recent call last): File "<pyshell#3>", line 1, in <module> a =array([20,30,40,50]) NameError: name 'array' is not defined >>> from numpy import * >>> a =array([20,30,40,50]) >>> a array([20, 30, 40, 50]) >>> c = arange(24).reshape(2,3,4) >>> c array([[[ 0, 1, 2, 3], [ 4, 5, 6, 7], [ 8, 9, 10, 11]], [[12, 13, 14, 15], [16, 17, 18, 19], [20, 21, 22, 23]]]) >>> c = arange(24) >>> c array([ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23]) >>> import matplotlib.pyplot as plt Traceback (most recent call last): File "<pyshell#11>", line 1, in <module> import matplotlib.pyplot as plt File "C:\Python27\lib\site-packages\matplotlib\pyplot.py", line 29, in <module> from matplotlib.figure import Figure, figaspect File "C:\Python27\lib\site-packages\matplotlib\figure.py", line 36, in <module> from matplotlib.axes import Axes, SubplotBase, subplot_class_factory File "C:\Python27\lib\site-packages\matplotlib\axes.py", line 20, in <module> import matplotlib.dates as _ # <-registers a date unit converter File "C:\Python27\lib\site-packages\matplotlib\dates.py", line 119, in <module> from dateutil.rrule import (rrule, MO, TU, WE, TH, FR, SA, SU, YEARLY, File "C:\Python27\lib\site-packages\dateutil\rrule.py", line 18, in <module> from six import advance_iterator, integer_types ImportError: No module named six >>> import matplotlib.pyplot as plt; plt.plot([1,2,3]); plt.ylabel('some numbers'); plt.show();
Python 2.7 (r27:82525, Jul 4 2010, 09:01:59) [MSC v.1500 32 bit (Intel)] on win32 Type "copyright", "credits" or "license()" for more information. >>> linspace(0,2,9) Traceback (most recent call last): File "<pyshell#0>", line 1, in <module> linspace(0,2,9) NameError: name 'linspace' is not defined >>> from numpy import * >>> linspace(0,2,9) array([ 0. , 0.25, 0.5 , 0.75, 1. , 1.25, 1.5 , 1.75, 2. ]) >>> a= arange(15).reshape(3,5) >>> a array([[ 0, 1, 2, 3, 4], [ 5, 6, 7, 8, 9], [10, 11, 12, 13, 14]]) >>> b=arange(6,7,8) >>> b array([6]) >>> b=array(6,7,8) Traceback (most recent call last): File "<pyshell#7>", line 1, in <module> b=array(6,7,8) ValueError: only 2 non-keyword arguments accepted >>> b=array([6,7,8]) >>> b array([6, 7, 8]) >>> a.shape (3, 5) >>> a.ndim 2 >>> a.ndim 2 >>> a.dtype dtype('int32') >>> >>> a.dtype.name 'int32' >>> a array([[ 0, 1, 2, 3, 4], [ 5, 6, 7, 8, 9], [10, 11, 12, 13, 14]]) >>> a.itemsize 4 >>> a.si Traceback (most recent call last): File "<pyshell#18>", line 1, in <module> a.si AttributeError: 'numpy.ndarray' object has no attribute 'si' >>> a.size 15 >>> type <type 'type'> >>> type(a) <type 'numpy.ndarray'> >>> type(b) <type 'numpy.ndarray'> >>> a=array([2,3,4]) >>> a array([2, 3, 4]) >>> a.dtype dtype('int32') >>> b.dtype dtype('int32') >>> b array([6, 7, 8]) >>> b=array([1.2,3.5,5.1]) >>> b array([ 1.2, 3.5, 5.1]) >>> b.dtype dtype('float64') >>>
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