EVO安装与问题解决：ev3安装失败

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ev3安装失败

1.安装方法

1.1 快捷安装 ，直接安装最新的稳定发行版：

pip install evo --upgrade --no-binary evo

1.2 源码安装 ，下载源码进行安装：
首先在任意文件夹下下载evo，也可以在home中直接下载

git clone https://github.com/MichaelGrupp/evo.git

然后进入evo文件夹下打开终端运行：

pip install --editable . --upgrade --no-binary evo

2.问题及解决办法

2.1 安装EVO，发现错误：

ERROR: pandas 0.24.2 has requirement python-dateutil>=2.5.0, but you'll have python-dateutil 2.4.2 which is incompatible. 
Installing collected packages: numpy, cycler, kiwisolver, matplotlib, scipy, pytz, pandas, seaborn, natsort, colorama, evo 
ERROR: Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: '/usr/local/lib/python3.5/dist-packages/numpy' Consider using the `--user` option or check the permissions.

解决：

pip3 install --upgrade python-dateutil

2.2.出现error和提示：

Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-v3u8zy4g/matplotlib/
You are using pip version 8.1.1, however version 19.2.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

运行：

pip install --upgrade pip

再运行：

pip3 install evo --upgrade --no-binary evo

安装成功。
2.3 使用–plot参数发现错误：

[ERROR] Unhandled error in evo.main_ape
Traceback (most recent call last):
  File "/usr/lib/python3.5/tkinter/__init__.py", line 36, in 
  
    import _tkinter ImportError: No module named '_tkinter' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/home/junchuan/env/lib/python3.5/site-packages/evo/entry_points.py", line 90, in launch main_module.run(args) File "/home/junchuan/env/lib/python3.5/site-packages/evo/main_ape.py", line 245, in run result.trajectories[est_name]) File "/home/junchuan/env/lib/python3.5/site-packages/evo/common_ape_rpe.py", line 91, in plot from evo.tools import plot File "/home/junchuan/env/lib/python3.5/site-packages/evo/tools/plot.py", line 35, in 
   
     import matplotlib.pyplot as plt File "/home/junchuan/env/lib/python3.5/site-packages/matplotlib/pyplot.py", line 2372, in 
    
      switch_backend(rcParams["backend"]) File "/home/junchuan/env/lib/python3.5/site-packages/matplotlib/pyplot.py", line 207, in switch_backend backend_mod = importlib.import_module(backend_name) File "/usr/lib/python3.5/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "/home/junchuan/env/lib/python3.5/site-packages/matplotlib/backends/backend_tkagg.py", line 1, in 
     
       from . import _backend_tk File "/home/junchuan/env/lib/python3.5/site-packages/matplotlib/backends/_backend_tk.py", line 5, in 
      
        import tkinter as Tk File "/usr/lib/python3.5/tkinter/__init__.py", line 38, in 
       
         raise ImportError(str(msg) + ', please install the python3-tk package') ImportError: No module named '_tkinter', please install the python3-tk package [ERROR] evo module evo.main_ape crashed - no logfile written (disabled) 
       
      
     
    
   
  

解决：安装tk包：

sudo apt install python3-tk

2.4 WARNING: The scripts f2py, f2py3 and f2py3.6 are installed in ‘/home/nano/.local/bin‘ which is not o

 WARNING: The scripts f2py, f2py3 and f2py3.6 are installed in '/home/nano/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.

解决：

gedit  ~/.bashrc

在bashrc里面写入

export PATH=/home/nano/.local/bin/:$PATH

更新
在终端输入

source ~/.bashrc  

2.5 DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020.
写一个配置文件

gedit ~/.bash_profile

写入保存：

PATH="/usr/bin:${
    PATH}"
export PATH
alias python="/usr/bin/python3"

如果希望python3的环境时输入：

source  ~/.bash_profile

3 参考

3.1 DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020.
3.2 WARNING: The scripts f2py, f2py3 and f2py3.6 are installed in ‘/home/nano/.local/bin‘ which is not o
3.3 ubuntu 16 安装EVO过程中发现的问题及解决办法

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