Question

我正在尝试使用一些Quandl数据集创建一个数据科学项目，但是在导入时遇到错误。

据我所知，quandl应该全部以小写形式导入，如文档中所述here和here，我的导入过程如下：

import quandl

错误：

ModuleNotFoundError: No module named 'quandl'

我使用pip install quandl安装了quandl。我的点列表输出为：

Package         Version
--------------- ---------
asn1crypto      0.24.0
certifi         2019.6.16
cffi            1.12.3
chardet         3.0.4
cryptography    2.7
idna            2.8
inflection      0.3.1
more-itertools  5.0.0
ndg-httpsclient 0.5.1
numpy           1.16.4
pandas          0.24.2
pip             19.1.1
pyasn1          0.4.5
pycparser       2.19
pyOpenSSL       19.0.0
python-dateutil 2.8.0
pytz            2019.1
Quandl          3.4.8
requests        2.22.0
setuptools      41.0.1
six             1.12.0
urllib3         1.25.3
wheel           0.33.4
wincertstore    0.2

我没有pip3，因为我是通过Anaconda安装程序安装的。我正在为此项目创建的虚拟环境中运行Jupyter Notebook。请注意，python --version的输出为：

Python 3.7.3

当我尝试使用import quandl运行单行python脚本时，发生了奇怪的部分。这次程序运行没有错误，这意味着ModuleNotFoundError: No module named 'quandl'的原因是jupyter笔记本，无法正确找到quandl模块。

作为最后的资源，我尝试在jupyter笔记本中安装quandl：

!pip install quandl
import quandl

输出：

Requirement already satisfied: quandl in c:\users\not_me\.conda\envs\quant\lib\site-packages (3.4.8)
Requirement already satisfied: pandas>=0.14 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from quandl) (0.24.2)
Requirement already satisfied: pyOpenSSL in c:\users\not_me\.conda\envs\quant\lib\site-packages (from quandl) (19.0.0)
Requirement already satisfied: inflection>=0.3.1 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from quandl) (0.3.1)
Requirement already satisfied: numpy>=1.8 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from quandl) (1.16.4)
Requirement already satisfied: more-itertools<=5.0.0 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from quandl) (5.0.0)
Requirement already satisfied: pyasn1 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from quandl) (0.4.5)
Requirement already satisfied: python-dateutil in c:\users\not_me\.conda\envs\quant\lib\site-packages (from quandl) (2.8.0)
Requirement already satisfied: six in c:\users\not_me\.conda\envs\quant\lib\site-packages (from quandl) (1.12.0)
Requirement already satisfied: ndg-httpsclient in c:\users\not_me\.conda\envs\quant\lib\site-packages (from quandl) (0.5.1)
Requirement already satisfied: requests>=2.7.0 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from quandl) (2.22.0)
Requirement already satisfied: pytz>=2011k in c:\users\not_me\.conda\envs\quant\lib\site-packages (from pandas>=0.14->quandl) (2019.1)
Requirement already satisfied: cryptography>=2.3 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from pyOpenSSL->quandl) (2.7)
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from requests>=2.7.0->quandl) (3.0.4)
Requirement already satisfied: idna<2.9,>=2.5 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from requests>=2.7.0->quandl) (2.8)
Requirement already satisfied: certifi>=2017.4.17 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from requests>=2.7.0->quandl) (2019.6.16)
Requirement already satisfied: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from requests>=2.7.0->quandl) (1.25.3)
Requirement already satisfied: asn1crypto>=0.21.0 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from cryptography>=2.3->pyOpenSSL->quandl) (0.24.0)
Requirement already satisfied: cffi!=1.11.3,>=1.8 in c:\users\not_me\.conda\envs\quant\lib\site-packages (from cryptography>=2.3->pyOpenSSL->quandl) (1.12.3)
Requirement already satisfied: pycparser in c:\users\not_me\.conda\envs\quant\lib\site-packages (from cffi!=1.11.3,>=1.8->cryptography>=2.3->pyOpenSSL->quandl) (2.19)
---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-1-614264e6071a> in <module>
      1 get_ipython().system('pip install quandl')
----> 3 import quandl

ModuleNotFoundError: No module named 'quandl'

Answer 1

尝试pip3 install quandl。通常适用于Python 3.x

Answer 2

尝试通过运行安装它

!pip install quandl

在Jupyter笔记本中的单元格中。如果您的设置正确，则可能会需要与您所需的pip版本相同。

Answer 3

当您要确保使用与该解释程序关联的pip版本时，可以使用模块语法而不是独立的CLI使用pip。

python -m pip install quandl

或者，由于您使用的是Conda，因此您也可以尝试使用quandl CLI安装conda。

conda install quandl（或任何conda包名称）。

Answer 4

问题是Jupyter无法正确识别我的虚拟环境。我找到了答案here，解决方法很容易解释。

导入quandl模块时出现问题

4 个答案: