来自python控制台的简单绘图

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使用anaconda3.6下Windows,这个程序从一个执行时anaconda console

python simple_plot.py

运行,但没有显示:

#file simple_plot.py
import matplotlib.pyplot as plt

plt.plot([1, 2, 3, 4])
plt.show()

如果我加

%matplotlib inline

并运行该程序:

python simple_plot.py

(base) C:\Users\idf\Documents\Python Scripts>python simple_plot.py
  File "simple_plot.py", line 3
    %matplotlib inline
    ^
SyntaxError: invalid syntax

如果我运行这个程序

(base) C:\Users\idf\Documents\Python Scripts>python -c "import matplotlib; print(matplotlib.get_backend())"

我得到输出:

Qt5Agg

一旦我包括:

import matplotlib.pyplot as plt
print("hello world") #nothing shows on console

输出 conda list

(base) C:\Users\idf\Documents\Python Scripts>conda list
# packages in environment at C:\Users\Ivan Figueredo\Anaconda:
#
# Name                    Version                   Build  Channel
_ipyw_jlab_nb_ext_conf    0.1.0            py36he6757f0_0
absl-py                   0.3.0                    py36_0    anaconda
absl-py                   0.2.2                     <pip>
aiohttp                   3.2.1                     <pip>
alabaster                 0.7.10           py36hcd07829_0
anaconda-client           1.6.14                   py36_0
anaconda-navigator        1.8.7                    py36_0
anaconda-project          0.8.2            py36hfad2e28_0
appdirs                   1.4.3                     <pip>
asn1crypto                0.24.0                   py36_0
astor                     0.6.2                    py36_1    anaconda
astor                     0.6.2                     <pip>
astroid                   1.6.3                    py36_0
astropy                   3.0.2            py36h452e1ab_1
async-timeout             3.0.0                     <pip>
attrs                     18.1.0                   py36_0
babel                     2.5.3                    py36_0
backcall                  0.1.0                    py36_0
backports                 1.0              py36h81696a8_1
backports.shutil_get_terminal_size 1.0.0            py36h79ab834_2
bazel                     0.14.0               h6538335_0
beautifulsoup4            4.6.0            py36hd4cc5e8_1
bitarray                  0.8.1            py36hfa6e2cd_1
bkcharts                  0.2              py36h7e685f7_0
blas                      1.0                         mkl
blaze                     0.11.3           py36h8a29ca5_0
bleach                    1.5.0                     <pip>
bleach                    1.5.0                    py36_0    anaconda
blosc                     1.14.3               he51fdeb_0
bokeh                     0.12.16                  py36_0
boto                      2.48.0           py36h1a776d2_1
bottleneck                1.2.1            py36hd119dfa_0
bzip2                     1.0.6                hfa6e2cd_5
ca-certificates           2018.03.07                    0
certifi                   2018.4.16                py36_0
cffi                      1.11.5           py36h945400d_0
chardet                   3.0.4            py36h420ce6e_1
click                     6.7              py36hec8c647_0
cloudpickle               0.5.3                    py36_0
clyent                    1.2.2            py36hb10d595_1
colorama                  0.3.9            py36h029ae33_0
comtypes                  1.1.4                    py36_0
conda                     4.5.8                    py36_0
conda-build               3.10.5                   py36_0
conda-env                 2.6.0                h36134e3_1
conda-verify              2.0.0            py36h065de53_0
console_shortcut          0.1.1                h6bb2dd7_3
contextlib2               0.5.5            py36he5d52c0_0
coverage                  4.5.1                     <pip>
cryptography              2.2.2            py36hfa6e2cd_0
cuda91                    1.0                           0    pytorch
cudatoolkit               9.0                           1
cudnn                     7.1.4                 cuda9.0_0    anaconda
curl                      7.60.0               h7602738_0
cycler                    0.10.0           py36h009560c_0
cython                    0.28.2           py36hfa6e2cd_0
cytoolz                   0.9.0.1          py36hfa6e2cd_0
dask                      0.17.5                   py36_0
dask-core                 0.17.5                   py36_0
dataclasses               0.6                       <pip>
datashape                 0.5.4            py36h5770b85_0
decorator                 4.3.0                    py36_0
distributed               1.21.8                   py36_0
docutils                  0.14             py36h6012d8f_0
easygui                   0.98.1                    <pip>
entrypoints               0.2.3            py36hfd66bb0_2
et_xmlfile                1.0.1            py36h3d2d736_0
fastcache                 1.0.2            py36hfa6e2cd_2
filelock                  3.0.4                    py36_0
flask                     1.0.2                    py36_1
flask-cors                3.0.4                    py36_0
freetype                  2.8                  h51f8f2c_1
future                    0.16.0                    <pip>
gast                      0.2.0                    py36_0    anaconda
gast                      0.2.0                     <pip>
get_terminal_size         1.0.0                h38e98db_0
gevent                    1.3.0            py36hfa6e2cd_0
glob2                     0.6              py36hdf76b57_0
greenlet                  0.4.13           py36hfa6e2cd_0
grpcio                    1.13.0                    <pip>
grpcio                    1.12.1           py36h1a1b453_0    anaconda
gym                       0.10.5                    <pip>
h5py                      2.7.1            py36h3bdd7fb_2
hdf5                      1.10.2               hac2f561_1
heapdict                  1.0.0                    py36_2
html5lib                  0.9999999                py36_0    anaconda
html5lib                  0.9999999                 <pip>
ibpy2                     0.8.0                    py36_0    tibkiss
icc_rt                    2017.0.4             h97af966_0
icu                       58.2                 ha66f8fd_1
idna                      2.6              py36h148d497_1
idna-ssl                  1.1.0                     <pip>
imageio                   2.3.0                    py36_0
imagesize                 1.0.0                    py36_0
intel-openmp              2018.0.0                      8
ipykernel                 4.8.2                    py36_0
ipython                   6.4.0                    py36_0
ipython_genutils          0.2.0            py36h3c5d0ee_0
ipywidgets                7.2.1                    py36_0
isort                     4.3.4                    py36_0
itsdangerous              0.24             py36hb6c5a24_1
jdcal                     1.4                      py36_0
jedi                      0.12.0                   py36_1
jinja2                    2.10             py36h292fed1_0
jpeg                      9b                   hb83a4c4_2
jsonschema                2.6.0            py36h7636477_0
jupyter                   1.0.0                    py36_4
jupyter_client            5.2.3                    py36_0
jupyter_console           5.2.0            py36h6d89b47_1
jupyter_core              4.4.0            py36h56e9d50_0
jupyterlab                0.32.1                   py36_0
jupyterlab_launcher       0.10.5                   py36_0
kiwisolver                1.0.1            py36h12c3424_0
lapack                    3.6.1                         1    conda-forge
lazy-object-proxy         1.3.1            py36hd1c21d2_0
libcurl                   7.60.0               hc4dcbb0_0
libiconv                  1.15                 h1df5818_7
libpng                    1.6.34               h79bbb47_0
libprotobuf               3.5.2                he0781b1_0    anaconda
libsodium                 1.0.16               h9d3ae62_0
libssh2                   1.8.0                hd619d38_4
libtiff                   4.0.9                hb8ad9f9_1
libxml2                   2.9.8                hadb2253_1
libxslt                   1.1.32               hf6f1972_0
llvmlite                  0.23.1           py36hcacf6c6_0
locket                    0.2.0            py36hfed976d_1
logger                    1.4                       <pip>
lxml                      4.2.1            py36heafd4d3_0
lzo                       2.10                 h6df0209_2
m2w64-gcc-libgfortran     5.3.0                         6
m2w64-gcc-libs            5.3.0                         7
m2w64-gcc-libs-core       5.3.0                         7
m2w64-gmp                 6.1.0                         2
m2w64-libwinpthread-git   5.0.0.4634.697f757               2
markdown                  2.6.11                   py36_0    anaconda
Markdown                  2.6.11                    <pip>
markupsafe                1.0              py36h0e26971_1
matplotlib                2.2.2            py36h153e9ff_1
mccabe                    0.6.1            py36hb41005a_1
menuinst                  1.4.14           py36hfa6e2cd_0
mistune                   0.8.3            py36hfa6e2cd_1
mkl                       2018.0.2                      1
mkl-service               1.1.2            py36h57e144c_4
mkl_fft                   1.0.1            py36h452e1ab_0
mkl_random                1.0.1            py36h9258bd6_0
more-itertools            4.1.0                    py36_0
mpmath                    1.0.0            py36hacc8adf_2
msgpack-python            0.5.6            py36he980bc4_0
msys2-conda-epoch         20160418                      1
multidict                 4.3.1                     <pip>
multipledispatch          0.5.0                    py36_0
navigator-updater         0.2.1                    py36_0
nbconvert                 5.3.1            py36h8dc0fde_0
nbformat                  4.4.0            py36h3a5bc1b_0
networkx                  2.1                      py36_0
nltk                      3.3.0                    py36_0
nose                      1.3.7            py36h1c3779e_2
notebook                  5.5.0                    py36_0
numba                     0.38.0           py36h830ac7b_0
numexpr                   2.6.5            py36hcd2f87e_0
numpy                     1.14.3           py36h9fa60d3_1
numpy-base                1.14.3           py36h555522e_1
numpydoc                  0.8.0                    py36_0
odo                       0.5.1            py36h7560279_0
olefile                   0.45.1                   py36_0
opencv                    3.3.1            py36h20b85fd_1
openjdk                   8.0.121                       1
openpyxl                  2.5.3                    py36_0
openssl                   1.0.2o               h8ea7d77_0
packaging                 17.1                     py36_0
pandas                    0.17.1                    <pip>
pandas                    0.23.0           py36h830ac7b_0
pandoc                    1.19.2.1             hb2460c7_1
pandocfilters             1.4.2            py36h3ef6317_1
parso                     0.2.0                    py36_0
partd                     0.3.8            py36hc8e763b_0
path.py                   11.0.1                   py36_0
pathlib2                  2.3.2                    py36_0
patsy                     0.5.0                    py36_0
pep8                      1.7.1                    py36_0
pickleshare               0.7.4            py36h9de030f_0
pillow                    5.1.0            py36h0738816_0
pip                       18.0                      <pip>
pip                       10.0.1                   py36_0
pkginfo                   1.4.2                    py36_1
plotly                    2.7.0                     <pip>
pluggy                    0.6.0            py36hc7daf1e_0
ply                       3.11                     py36_0
prompt_toolkit            1.0.15           py36h60b8f86_0
protobuf                  3.5.2            py36h6538335_0    anaconda
protobuf                  3.6.0                     <pip>
psutil                    5.4.5            py36hfa6e2cd_0
ptan                      0.3                       <pip>
py                        1.5.3                    py36_0
pycodestyle               2.4.0                    py36_0
pycosat                   0.6.3            py36h413d8a4_0
pycparser                 2.18             py36hd053e01_1
pycrypto                  2.6.1            py36hfa6e2cd_8
pycuda                    2017.1.1+cuda9288           <pip>
pycurl                    7.43.0.1         py36h74b6da3_0
pyflakes                  1.6.0            py36h0b975d6_0
pyglet                    1.3.2                     <pip>
pygments                  2.2.0            py36hb010967_0
pylint                    1.8.4                    py36_0
pyodbc                    4.0.23           py36h6538335_0
pyopenssl                 18.0.0                   py36_0
pyparsing                 2.2.0            py36h785a196_1
pyqt                      5.9.2            py36h1aa27d4_0
PyQt4                     4.11.4                    <pip>
pysocks                   1.6.8                    py36_0
pytables                  3.4.3            py36he6f6034_1
pytest                    3.5.1                    py36_0
pytest-arraydiff          0.2                      py36_0
pytest-astropy            0.3.0                    py36_0
pytest-cov                2.5.1                     <pip>
pytest-doctestplus        0.1.3                    py36_0
pytest-openfiles          0.3.0                    py36_0
pytest-qt                 1.2.2                     <pip>
pytest-remotedata         0.2.1                    py36_0
python                    3.6.5                h0c2934d_0
python-dateutil           2.7.3                    py36_0
python-magic              0.4.6                     <pip>
pytools                   2018.5.2                  <pip>
pytorch                   0.4.0           py36_cuda91_cudnn7he774522_1  [cuda91]  pytorch
pytz                      2018.4                   py36_0
pywavelets                0.5.2            py36hc649158_0
pywin32                   223              py36hfa6e2cd_1
pywinpty                  0.5.1                    py36_0
pyyaml                    3.12             py36h1d1928f_1
pyzmq                     17.0.0           py36hfa6e2cd_1
qt                        5.9.6            vc14h62aca36_0
qtawesome                 0.4.4            py36h5aa48f6_0
qtconsole                 4.3.1            py36h99a29a9_0
qtpandas                  1.0.3                     <pip>
qtpy                      1.4.1                    py36_0
requests                  2.18.4           py36h4371aae_1
rope                      0.10.7           py36had63a69_0
ruamel_yaml               0.15.35          py36hfa6e2cd_1
scikit-image              0.13.1           py36hfa6e2cd_1
scikit-learn              0.19.1           py36h53aea1b_0
scipy                     1.1.0            py36h672f292_0
seaborn                   0.8.1            py36h9b69545_0
send2trash                1.5.0                    py36_0
setuptools                39.1.0                   py36_0
simplegeneric             0.8.1                    py36_2
singledispatch            3.4.0.3          py36h17d0c80_0
sip                       4.19.8           py36h6538335_0
six                       1.11.0           py36h4db2310_1
sklearn                   0.0                       <pip>
snappy                    1.1.7                h777316e_3
snowballstemmer           1.2.1            py36h763602f_0
sortedcollections         0.6.1                    py36_0
sortedcontainers          1.5.10                   py36_0
sphinx                    1.7.4                    py36_0
sphinxcontrib             1.0              py36hbbac3d2_1
sphinxcontrib-websupport  1.0.1            py36hb5e5916_1
spyder                    3.2.8                    py36_0
sqlalchemy                1.2.7            py36ha85dd04_0
sqlite                    3.23.1               h35aae40_0
statsmodels               0.9.0            py36h452e1ab_0
sympy                     1.1.1            py36h96708e0_0
tastyworks                1.0.0                     <pip>
tblib                     1.3.2            py36h30f5020_0
tensorboard               1.8.0            py36he025d50_0    anaconda
tensorflow-gpu            1.8.0                h21ff451_0    anaconda
tensorflow-gpu-base       1.8.0            py36h376609f_0    anaconda
termcolor                 1.1.0                    py36_1    anaconda
termcolor                 1.1.0                     <pip>
terminado                 0.8.1                    py36_1
testpath                  0.3.1            py36h2698cfe_0
tk                        8.6.7                hcb92d03_3
toolz                     0.9.0                    py36_0
tornado                   5.0.2                    py36_0
traitlets                 4.3.2            py36h096827d_0
typing                    3.6.4                    py36_0
unicodecsv                0.14.1           py36h6450c06_0
urllib3                   1.22             py36h276f60a_0
vc                        14.1                 h0510ff6_3    anaconda
vs2015_runtime            15.5.2                        3    anaconda
wcwidth                   0.1.7            py36h3d5aa90_0
webencodings              0.5.1            py36h67c50ae_1
websockets                6.0                       <pip>
werkzeug                  0.14.1                   py36_0
wheel                     0.31.1                   py36_0
widgetsnbextension        3.2.1                    py36_0
win_inet_pton             1.0.1            py36he67d7fd_1
win_unicode_console       0.5              py36hcdbd4b5_0
wincertstore              0.2              py36h7fe50ca_0
winpty                    0.4.3                         4
wrapt                     1.10.11          py36he5f5981_0
xlrd                      1.1.0            py36h1cb58dc_1
xlsxwriter                1.0.4                    py36_0
xlwings                   0.11.8                   py36_0
xlwt                      1.3.0            py36h1a4751e_0
yaml                      0.1.7                hc54c509_2
yarl                      1.2.6                     <pip>
zeromq                    4.2.5                hc6251cf_0
zict                      0.1.3            py36h2d8e73e_0
zlib                      1.2.11               h8395fce_2

(base) C:\Users\idf\Documentidfs\Python Scripts>

如果我启动一个普通的DOS控制台然后activate python

C:\Users\idf>"..\idf\Anaconda\Scripts\activate.bat"

并尝试运行simple_plot.py,相同的行为。

我错过了什么?

提问于
用户回答回答于

您可能需要添加魔术功能。在这些情况下%matplotlib inline。这将允许你绘图。

#file simple_plot.py
import matplotlib.pyplot as plt
%matplotlib inline 

plt.plot([1, 2, 3, 4])
plt.show()

更新:

如果在anaconda控制台上运行程序。

用户回答回答于

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