Running Python file from Java class











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I am trying to run a .py file from a java class and capture the output back to JAVA class. I am able to run the .py file successfully, but the problem is when I provide multiple third party imports in my .py file, then the JAVA class is not able to execute the python class and returning me null instance.
Location of .py file->/anaconda3/lib/python3.7/site-packages/try.py



JAVA code snippet:



public void exec_Python2() throws IOException
{
String d="python /anaconda3/lib/python3.7/site-packages/try.py Advertising";
Process p = Runtime.getRuntime().exec(d);
String s = null;
BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
List<String> resultsFound=new ArrayList<String>();
System.out.println("Here is the standard output of the command:n");
while ((s = stdInput.readLine()) != null) {
resultsFound.add(s.trim());
System.out.println(s);
}


}



PYTHON code snippet(try.py)



import sys
import cv2
import numpy as np
import pytesseract
from PIL import Image

arg1 = sys.argv[1]
def get_string(img_path):
print(img_path)

get_string(arg1)


But the same code works with CMD as:



python /anaconda3/lib/python3.7/site-packages/try.py ABCD


Output:
ABCD










share|improve this question


























    up vote
    0
    down vote

    favorite
    1












    I am trying to run a .py file from a java class and capture the output back to JAVA class. I am able to run the .py file successfully, but the problem is when I provide multiple third party imports in my .py file, then the JAVA class is not able to execute the python class and returning me null instance.
    Location of .py file->/anaconda3/lib/python3.7/site-packages/try.py



    JAVA code snippet:



    public void exec_Python2() throws IOException
    {
    String d="python /anaconda3/lib/python3.7/site-packages/try.py Advertising";
    Process p = Runtime.getRuntime().exec(d);
    String s = null;
    BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
    List<String> resultsFound=new ArrayList<String>();
    System.out.println("Here is the standard output of the command:n");
    while ((s = stdInput.readLine()) != null) {
    resultsFound.add(s.trim());
    System.out.println(s);
    }


    }



    PYTHON code snippet(try.py)



    import sys
    import cv2
    import numpy as np
    import pytesseract
    from PIL import Image

    arg1 = sys.argv[1]
    def get_string(img_path):
    print(img_path)

    get_string(arg1)


    But the same code works with CMD as:



    python /anaconda3/lib/python3.7/site-packages/try.py ABCD


    Output:
    ABCD










    share|improve this question
























      up vote
      0
      down vote

      favorite
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      up vote
      0
      down vote

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      1





      I am trying to run a .py file from a java class and capture the output back to JAVA class. I am able to run the .py file successfully, but the problem is when I provide multiple third party imports in my .py file, then the JAVA class is not able to execute the python class and returning me null instance.
      Location of .py file->/anaconda3/lib/python3.7/site-packages/try.py



      JAVA code snippet:



      public void exec_Python2() throws IOException
      {
      String d="python /anaconda3/lib/python3.7/site-packages/try.py Advertising";
      Process p = Runtime.getRuntime().exec(d);
      String s = null;
      BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
      List<String> resultsFound=new ArrayList<String>();
      System.out.println("Here is the standard output of the command:n");
      while ((s = stdInput.readLine()) != null) {
      resultsFound.add(s.trim());
      System.out.println(s);
      }


      }



      PYTHON code snippet(try.py)



      import sys
      import cv2
      import numpy as np
      import pytesseract
      from PIL import Image

      arg1 = sys.argv[1]
      def get_string(img_path):
      print(img_path)

      get_string(arg1)


      But the same code works with CMD as:



      python /anaconda3/lib/python3.7/site-packages/try.py ABCD


      Output:
      ABCD










      share|improve this question













      I am trying to run a .py file from a java class and capture the output back to JAVA class. I am able to run the .py file successfully, but the problem is when I provide multiple third party imports in my .py file, then the JAVA class is not able to execute the python class and returning me null instance.
      Location of .py file->/anaconda3/lib/python3.7/site-packages/try.py



      JAVA code snippet:



      public void exec_Python2() throws IOException
      {
      String d="python /anaconda3/lib/python3.7/site-packages/try.py Advertising";
      Process p = Runtime.getRuntime().exec(d);
      String s = null;
      BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
      List<String> resultsFound=new ArrayList<String>();
      System.out.println("Here is the standard output of the command:n");
      while ((s = stdInput.readLine()) != null) {
      resultsFound.add(s.trim());
      System.out.println(s);
      }


      }



      PYTHON code snippet(try.py)



      import sys
      import cv2
      import numpy as np
      import pytesseract
      from PIL import Image

      arg1 = sys.argv[1]
      def get_string(img_path):
      print(img_path)

      get_string(arg1)


      But the same code works with CMD as:



      python /anaconda3/lib/python3.7/site-packages/try.py ABCD


      Output:
      ABCD







      java python import python-imaging-library jython






      share|improve this question













      share|improve this question











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      share|improve this question










      asked Nov 19 at 17:11









      Agnibha Ghosh

      63




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