Using graph drawing using Python's Matplotlib + Seaborn on Windows, a non-Python execution environment

Due to various circumstances, there was a case where the graph drawing function of Python was used on Windows, which is a non-Python execution environment, so it is described as a memorandum. It might be nuget, but I couldn't find out ...

environment

OS: Windows 10 64bit Python:3.6.10 Pyinstaller:3.5

Create heatmap drawing with .py

Since I want a heatmap graph this time, I created a script "heatMap.py" that draws a heatmap and saves it as .png. Eventually, .exe will be executed from Windows, so for ease of use,

1. Read .csv (specify path)
2. Save .png (specify path) Can be executed with arguments. Seaborn was used for heatmap drawing. The motive was it seems easy to make various heatmaps, and I felt the extensibility.

sample

import sys
import os
import numpy as np
import seaborn as sns
import matplotlib.pyplot as plt

def Heatmap(data):

 ax = sns.heatmap(data,annot=True)
 return ax

if __name__ == '__main__':

 args = sys.argv

 load_path = args[1]
 save_path = args[2]
 save_name = args[3]

 print(load_path,save_path,save_name)

 data = np.loadtxt(load_path,delimiter=",")
 hoge = Heatmap(data)
 hoge.plot()

 plt.savefig(os.path.join(save_path,save_name),facecolor="blue")   

First argument args [1]: Data source (csv file) path + file specification Second argument args [2]: Specify the path to save the graph Third argument args [3]: Graph name. Save format specified

• Args [0] is the executable file name

See here for python argument execution, For the savefig path specification of matplotlib, refer to here.

• Error handling is omitted

Create .exe with pyinstaller

Create .exe with pyinstaller by referring to this article.

A folder including related dlls has been created.

Run with arguments in .exe

[App.exe] [First argument] [Second argument] [Third argument]

C:\Users\user.name>heatMap.exe C:\Users\user.name\Documents\Python\Graph\DataSrc\matrix.csv C:\Users\user.name\Documents\Python\Graph\GraphDst heatMapTest.png

It's done.

However, it takes a few seconds to execute this because it is a policy to execute it from the beginning every time. → Actual measurement about 4 seconds Since File saving is repeated, it is not suitable for the purpose of executing this .exe on the Windows application side and importing the output file to the application side. (I can do it if it's late) Next time, make .exe always up and return it by interprocess communication