1 说明：

=====

1.1 不知道哪里出问题了，在使用pandas时报错，不能使用。

Python 3.8.0 (default, Mar 18 2020, 21:36:59) [GCC 6.3.0 20170516] on linuxType "help", "copyright", "credits" or "license" for more information.>>> import pandas as pd

#报错Traceback (most recent call last):  File "", line 1, in   File "/usr/local/python3.8/lib/python3.8/site-packages/pandas/__init__.py", line 55, in     from pandas.core.api import (  File "/usr/local/python3.8/lib/python3.8/site-packages/pandas/core/api.py", line 29, in     from pandas.core.groupby import Grouper, NamedAgg  File "/usr/local/python3.8/lib/python3.8/site-packages/pandas/core/groupby/__init__.py", line 1, in     from pandas.core.groupby.generic import DataFrameGroupBy, NamedAgg, SeriesGroupBy  File "/usr/local/python3.8/lib/python3.8/site-packages/pandas/core/groupby/generic.py", line 60, in     from pandas.core.frame import DataFrame  File "/usr/local/python3.8/lib/python3.8/site-packages/pandas/core/frame.py", line 104, in     from pandas.core.generic import NDFrame, _shared_docs  File "/usr/local/python3.8/lib/python3.8/site-packages/pandas/core/generic.py", line 99, in     from pandas.io.formats import format as fmt  File "/usr/local/python3.8/lib/python3.8/site-packages/pandas/io/formats/format.py", line 75, in     from pandas.io.common import stringify_path  File "/usr/local/python3.8/lib/python3.8/site-packages/pandas/io/common.py", line 3, in     import bz2  File "/usr/local/python3.8/lib/python3.8/bz2.py", line 19, in     from _bz2 import BZ2Compressor, BZ2DecompressorModuleNotFoundError: No module named '_bz2'

1.2 怎么办？解决它！！

2 网上的办法基本都不行：

这种不行：

https://www.cnblogs.com/lemon-le/p/11558971.html

2、找到_bz2.cpython-36m-x86_64-linux-gnu.so文件如果在机器上没有的话，可以到这里下载：链接：https://pan.baidu.com/s/1GzUY4E0G2yVUfqxHOIzn1A 提取码：oiwh  3、修改文件名 如果你的python版本是3.6，那就是36m，我的是python3.8，得把文件名改为38m，并拷贝到python3.8的安装目录mv _bz2.cpython-36m-x86_64-linux-gnu.so _bz2.cpython-38m-x86_64-linux-gnu.socp _bz2.cpython-38m-x86_64-linux-gnu.so /usr/local/python3.8/lib/python3.8/lib-dynload/

3 从新编译安装python3.8

3.1 我自己的安装记录

https://www.toutiao.com/i6805551238524961288/

3.2 环境：

华为笔记本电脑，深度deepin-linux操作系统

3.3 先安装依赖：

sudo apt-get updatesudo apt-get upgradesudo apt-get dist-upgradesudo apt-get install build-essential python-dev python-setuptools python-pip python-smbussudo apt-get install build-essential libncursesw5-dev libgdbm-dev libc6-devsudo apt-get install zlib1g-dev libsqlite3-dev tk-devsudo apt-get install libssl-dev opensslsudo apt-get install libffi-dev

3.4 以root下进入

root@xgj-PC:~# cd /opt/Python-3.8.0root@xgj-PC:/opt/Python-3.8.0# 

3.5 清楚曾经的安装

make clean

3.6 保险一点，再安装依赖：基本不需要了

sudo apt-get install opensslsudo apt-get install libssl-devsudo apt-get install libssl-dev opensslsudo apt-get install libffi-devsudo apt-get install zlib1g-dev libsqlite3-dev tk-devsudo apt-get install build-essential libncursesw5-dev libgdbm-dev libc6-devsudo apt-get install build-essential python-dev python-setuptools python-pip python-smbus

3.7 从新编译安装

./configure --prefix=/usr/local/python3.8makemake install

3.8 建立软连接，可以省略，因为原来就有的

ln -s /usr/local/python3.8/bin/python3.8 /usr/bin/python3.8ln -s /usr/local/python3.8/bin/pip3.8 /usr/bin/pip3.8

3.9 升级pip，本机

pip3.8 install --upgrade pip

4 查看版本和测试，没报错，成功！！

root@xgj-PC:/opt/Python-3.8.0# pip3.8 --versionpip 20.1.1 from /usr/local/python3.8/lib/python3.8/site-packages/pip (python 3.8)root@xgj-PC:/opt/Python-3.8.0# python3.8Python 3.8.0 (default, May 27 2020, 21:07:57) [GCC 6.3.0 20170516] on linuxType "help", "copyright", "credits" or "license" for more information.>>> import pandas as pd>>> 

5 举个可视化利用pandas的matplotlib作图的例子：

5.1 代码：

import matplotlib.pyplot as pltimport matplotlib# 第一步，导出通用字体设置from matplotlib import font_manager #第二步，引出字体模块和位置my_font = font_manager.FontProperties(fname="hwfs.ttf",size=20)#如果不设置，就是默认大小，这里的15=1500,6=600,大小为1500和600像素plt.figure(figsize=(15, 6))#5组数据的比较price = [39.5, 39.9, 45.4, 38.9, 33.34]plat=['亚马逊', '当当网', '中国图书网', '京东', '天猫']"""绘制水平条形图方法barh参数一：y轴参数二：x轴"""plt.barh(range(5), price, height=0.7, color='pink', alpha=0.8) # 从下往上画plt.yticks(range(5), plat,fontproperties=my_font)plt.xlim(30,47) #30~47，各1#第三步，增加u和fontproperties=my_font，可加u可不加uplt.xlabel(u"价格",fontproperties=my_font)plt.ylabel(u'公司',fontproperties=my_font)plt.title(u"不同平台图书价格",fontproperties=my_font)#这是设置柱状条上面的数值，来自pricefor x, y in enumerate(price):    plt.text(y + 0.2, x - 0.1, '%s' % y)plt.show()

5.2 效果图：成功！！

5.3 报错：

成功！一次解决报错记录。自己能解决报错，是每一个程序员或者说学习编程人员，尤其是python爱好者的基本能力。

===自己整理并分享出来，祝大家也能遇到问题自己解决，小白看了都会===

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