01-python-tools
# 使用 whos 查看当前的变量空间：
a = 3
b = list([1,2,3,4,5])
%whos
Variable Type Data/Info
----------------------------
a int 3
b list n=5
# 使用 reset 重置当前变量空间：
%reset -f
%whos
Interactive namespace is empty.
#查看 conda 的信息：
!conda info
Current conda install:
platform : win-64
conda version : 4.3.21
conda is private : False
conda-env version : 4.3.21
conda-build version : not installed
python version : 3.6.1.final.0
requests version : 2.14.2
root environment : D:\software\Anaconda\anaconda (writable)
default environment : D:\software\Anaconda\anaconda
envs directories : D:\software\Anaconda\anaconda\envs
C:\Users\吴旭琴\AppData\Local\conda\conda\envs
C:\Users\吴旭琴\.conda\envs
package cache : D:\software\Anaconda\anaconda\pkgs
C:\Users\吴旭琴\AppData\Local\conda\conda\pkgs
channel URLs : https://repo.continuum.io/pkgs/free/win-64
https://repo.continuum.io/pkgs/free/noarch
https://repo.continuum.io/pkgs/r/win-64
https://repo.continuum.io/pkgs/r/noarch
https://repo.continuum.io/pkgs/pro/win-64
https://repo.continuum.io/pkgs/pro/noarch
https://repo.continuum.io/pkgs/msys2/win-64
https://repo.continuum.io/pkgs/msys2/noarch
config file : None
netrc file : None
offline mode : False
user-agent : conda/4.3.21 requests/2.14.2 CPython/3.6.1 Windows/10 Windows/10.0.17134
administrator : False
#查看已经安装好的python第三方工具包
!conda list
# packages in environment at D:\software\Anaconda\anaconda:
#
_license 1.1 py36_1
alabaster 0.7.10 py36_0
anaconda 4.4.0 np112py36_0
anaconda-client 1.6.3 py36_0
anaconda-navigator 1.6.2 py36_0
anaconda-project 0.6.0 py36_0
asn1crypto 0.22.0 py36_0
astroid 1.4.9 py36_0
astropy 1.3.2 np112py36_0
babel 2.4.0 py36_0
backports 1.0 py36_0
beautifulsoup4 4.6.0 py36_0
bitarray 0.8.1 py36_1
blaze 0.10.1 py36_0
bleach 1.5.0 py36_0
bokeh 0.12.5 py36_1
boto 2.46.1 py36_0
bottleneck 1.2.1 np112py36_0
bzip2 1.0.6 vc14_3 [vc14]
cffi 1.10.0 py36_0
chardet 3.0.3 py36_0
click 6.7 py36_0
cloudpickle 0.2.2 py36_0
clyent 1.2.2 py36_0
colorama 0.3.9 py36_0
comtypes 1.1.2 py36_0
conda 4.3.21 py36_0
conda-env 2.6.0 0
console_shortcut 0.1.1 py36_1
contextlib2 0.5.5 py36_0
cryptography 1.8.1 py36_0
curl 7.52.1 vc14_0 [vc14]
cycler 0.10.0 py36_0
cython 0.25.2 py36_0
cytoolz 0.8.2 py36_0
dask 0.14.3 py36_1
datashape 0.5.4 py36_0
decorator 4.0.11 py36_0
distributed 1.16.3 py36_0
docutils 0.13.1 py36_0
entrypoints 0.2.2 py36_1
et_xmlfile 1.0.1 py36_0
fastcache 1.0.2 py36_1
flask 0.12.2 py36_0
flask-cors 3.0.2 py36_0
freetype 2.5.5 vc14_2 [vc14]
get_terminal_size 1.0.0 py36_0
gevent 1.2.1 py36_0
greenlet 0.4.12 py36_0
h5py 2.7.0 np112py36_0
hdf5 1.8.15.1 vc14_4 [vc14]
heapdict 1.0.0 py36_1
html5lib 0.999 py36_0
icu 57.1 vc14_0 [vc14]
idna 2.5 py36_0
imagesize 0.7.1 py36_0
ipykernel 4.6.1 py36_0
ipython 5.3.0 py36_0
ipython_genutils 0.2.0 py36_0
ipywidgets 6.0.0 py36_0
isort 4.2.5 py36_0
itsdangerous 0.24 py36_0
jdcal 1.3 py36_0
jedi 0.10.2 py36_2
jinja2 2.9.6 py36_0
jpeg 9b vc14_0 [vc14]
jsonschema 2.6.0 py36_0
jupyter 1.0.0 py36_3
jupyter_client 5.0.1 py36_0
jupyter_console 5.1.0 py36_0
jupyter_core 4.3.0 py36_0
lazy-object-proxy 1.2.2 py36_0
libpng 1.6.27 vc14_0 [vc14]
libtiff 4.0.6 vc14_3 [vc14]
llvmlite 0.18.0 py36_0
locket 0.2.0 py36_1
lxml 3.7.3 py36_0
markupsafe 0.23 py36_2
matplotlib 2.0.2 np112py36_0
menuinst 1.4.7 py36_0
mistune 0.7.4 py36_0
mkl 2017.0.1 0
mkl-service 1.1.2 py36_3
mpmath 0.19 py36_1
msgpack-python 0.4.8 py36_0
multipledispatch 0.4.9 py36_0
navigator-updater 0.1.0 py36_0
nbconvert 5.1.1 py36_0
nbformat 4.3.0 py36_0
networkx 1.11 py36_0
nltk 3.2.3 py36_0
nose 1.3.7 py36_1
notebook 5.0.0 py36_0
numba 0.33.0 np112py36_0
numexpr 2.6.2 np112py36_0
numpy 1.12.1 py36_0
numpydoc 0.6.0 py36_0
odo 0.5.0 py36_1
olefile 0.44 py36_0
openpyxl 2.4.7 py36_0
openssl 1.0.2l vc14_0 [vc14]
packaging 16.8 py36_0
pandas 0.20.1 np112py36_0
pandocfilters 1.4.1 py36_0
partd 0.3.8 py36_0
path.py 10.3.1 py36_0
pathlib2 2.2.1 py36_0
patsy 0.4.1 py36_0
pep8 1.7.0 py36_0
pickleshare 0.7.4 py36_0
pillow 4.1.1 py36_0
pip 9.0.1 py36_1
ply 3.10 py36_0
prompt_toolkit 1.0.14 py36_0
psutil 5.2.2 py36_0
py 1.4.33 py36_0
pycosat 0.6.2 py36_0
pycparser 2.17 py36_0
pycrypto 2.6.1 py36_6
pycurl 7.43.0 py36_2
pyflakes 1.5.0 py36_0
pygments 2.2.0 py36_0
pylint 1.6.4 py36_1
pyodbc 4.0.16 py36_0
pyopenssl 17.0.0 py36_0
pyparsing 2.1.4 py36_0
pyqt 5.6.0 py36_2
pytables 3.2.2 np112py36_4
pytest 3.0.7 py36_0
python 3.6.1 2
python-dateutil 2.6.0 py36_0
pytz 2017.2 py36_0
pywavelets 0.5.2 np112py36_0
pywin32 220 py36_2
pyyaml 3.12 py36_0
pyzmq 16.0.2 py36_0
qt 5.6.2 vc14_4 [vc14]
qtawesome 0.4.4 py36_0
qtconsole 4.3.0 py36_0
qtpy 1.2.1 py36_0
requests 2.14.2 py36_0
rope 0.9.4 py36_1
ruamel_yaml 0.11.14 py36_1
scikit-image 0.13.0 np112py36_0
scikit-learn 0.18.1 np112py36_1
scipy 0.19.0 np112py36_0
seaborn 0.7.1 py36_0
setuptools 27.2.0 py36_1
simplegeneric 0.8.1 py36_1
singledispatch 3.4.0.3 py36_0
sip 4.18 py36_0
six 1.10.0 py36_0
snowballstemmer 1.2.1 py36_0
sortedcollections 0.5.3 py36_0
sortedcontainers 1.5.7 py36_0
sphinx 1.5.6 py36_0
spyder 3.1.4 py36_0
sqlalchemy 1.1.9 py36_0
statsmodels 0.8.0 np112py36_0
sympy 1.0 py36_0
tblib 1.3.2 py36_0
testpath 0.3 py36_0
tk 8.5.18 vc14_0 [vc14]
toolz 0.8.2 py36_0
tornado 4.5.1 py36_0
traitlets 4.3.2 py36_0
unicodecsv 0.14.1 py36_0
vs2015_runtime 14.0.25123 0
wcwidth 0.1.7 py36_0
werkzeug 0.12.2 py36_0
wheel 0.29.0 py36_0
widgetsnbextension 2.0.0 py36_0
win_unicode_console 0.5 py36_0
wrapt 1.10.10 py36_0
wxPython 4.0.0b2 <pip>
xlrd 1.0.0 py36_0
xlsxwriter 0.9.6 py36_0
xlwings 0.10.4 py36_0
xlwt 1.2.0 py36_0
zict 0.1.2 py36_0
zlib 1.2.8 vc14_3 [vc14]
import numpy as np
a = np.array([[1,2,3],
[2,3,4]])
print (a.shape)
print (a[1][1])
b = [3,4,5]
print (b)
print(b[2])
b.append(5)
print(b)
(2, 3)
3
[3, 4, 5]
5
[3, 4, 5, 5]