import argparse
# construct the argument parse and parse the arguments
ap = argparse.ArgumentParser()
ap.add_argument("-i", "--image", required=True,
help="path to input image")
ap.add_argument("-p", "--prototxt", required=True,
help="path to Caffe 'deploy' prototxt file")
ap.add_argument("-m", "--model", required=True,
help="path to Caffe pre-trained model")
ap.add_argument("-c", "--confidence", type=float, default=0.5,
help="minimum probability to filter weak detections")
args = vars(ap.parse_args())
I'm running a face recognition example through OpenCV.
I use 'argparse' at this point, and get this error.
args = vars(ap.parse_args())
from this code.
usage: ipykernel_launcher.py [-h] -i IMAGE -p PROTOTXT -m MODEL
[-c CONFIDENCE]
ipykernel_launcher.py: error: the following arguments are required: -i/--
image, -p/--prototxt, -m/--model
An exception has occurred, use %tb to see the full traceback.
SystemExit: 2
C:\Users\user\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py:2918: UserWarning: To exit: use 'exit', 'quit', or Ctrl-D.
warn("To exit: use 'exit', 'quit', or Ctrl-D.", stacklevel=1)
How can I solve it?
This is my computer environment and use the Jupyter-notebook
Python: 3.6.4 64bit [MSC v.1900 64 bit (AMD64)]
IPython: 6.2.1
OS: Windows 10 10.0.15063 SP0
argparse: 1.1
This is hard to answer without you sharing how you try to run the file. The error is telling you it did not find the required arguments passed in when you ran the file.
Since you specified required = True for the -i, -p, and -m arguments you must always pass them in or make them optional if they are not needed to run your program.
In an ipython session:
In [36]: import argparse
In [37]: # construct the argument parse and parse the arguments
...: ap = argparse.ArgumentParser()
...: ap.add_argument("-i", "--image", required=True,
...: help="path to input image")
...: ap.add_argument("-p", "--prototxt", required=True,
...: help="path to Caffe 'deploy' prototxt file")
...: ap.add_argument("-m", "--model", required=True,
...: help="path to Caffe pre-trained model")
...: ap.add_argument("-c", "--confidence", type=float, default=0.5,
...: help="minimum probability to filter weak detections")
...: args = vars(ap.parse_args())
...:
usage: ipython3 [-h] -i IMAGE -p PROTOTXT -m MODEL [-c CONFIDENCE]
ipython3: error: the following arguments are required: -i/--image, -p/--prototxt, -m/--model
An exception has occurred, use %tb to see the full traceback.
SystemExit: 2
/usr/local/lib/python3.6/dist-packages/IPython/core/interactiveshell.py:2918: UserWarning: To exit: use 'exit', 'quit', or Ctrl-D.
warn("To exit: use 'exit', 'quit', or Ctrl-D.", stacklevel=1)
I can run this parser by modifying sys.argv:
In [39]: import sys
In [40]: sys.argv[1:]
Out[40]:
['--pylab',
'--nosep',
'--term-title',
'--InteractiveShellApp.pylab_import_all=False']
In [41]: sys.argv[1:] = '-i image -p proto -m amodel'.split()
In [42]: args = ap.parse_args()
In [43]: args
Out[43]: Namespace(confidence=0.5, image='image', model='amodel', prototxt='proto')
or with
In [45]: ap.parse_args('-i image -p proto -m amodel'.split())
Out[45]: Namespace(confidence=0.5, image='image', model='amodel', prototxt='proto')
I often use this method to test a parser.
If this parser was in a script, and I ran it from command line without the arguments, it would print the usage and then exit. That exit is what ipython is catching and displaying as SystemExit: 2.
I think you should set required=True to False
Related
can anyone tell me how to make this code works in jupyter or any notebook
Code
import argparse
ap = argparse.ArgumentParser()
ap.add_argument("-i", "--image", required=True, help="path to input image")
ap.add_argument("-p", "--prototxt", required=True, help="path to Caffe 'deploy' prototxt file")
ap.add_argument("-m", "--model", required=True, help="path to Caffe pre-trained model")
ap.add_argument("-c", "--confidence", type=float, default=0.2, help="minimum probability to filter weak detections")
args = vars(ap.parse_args())
Error
An exception has occurred, use %tb to see the full traceback.
SystemExit: 2
I've tried some solutions but none work
Why my argument parse has an error although I have already defined the arguments
ap = argparse.ArgumentParser()
ap.add_argument("-i", "--image", required=True,
help="path to the input image")
ap.add_argument("-w", "--width", type=float, required=True,
help="width of the left-most object in the image (in inches)")
args = vars(ap.parse_args())
and the error says that
usage: main.py [-h] -i IMAGE -w WIDTH
main.py: error: the following arguments are required: -i/--image, -w/--width
I am doing data extraction from scanned document.I am using the below code for constructing and parsing the arguments:
from PIL import Image
import pytesseract
import argparse
import cv2
import os
import re
import io
import json
import ftfy
ap = argparse.ArgumentParser()
ap.add_argument("-i", "--image", required=True,
help="path to input image to be OCR'd")
ap.add_argument("-p", "--preprocess", type=str, default="thresh",
help="type of preprocessing to be done, choose from blur, linear, cubic or bilateral")
args = vars(ap.parse_args())
The line args = vars(ap.parse_args()) is throwing an error as below:
usage: [-h] -i IMAGE [-p PREPROCESS]
: error: the following arguments are required: -i/--image
An exception has occurred, use %tb to see the full traceback.
SystemExit: 2
C:\Users\Aditya\anaconda\lib\site-packages\IPython\core\interactiveshell.py:3339: UserWarning: To exit: use 'exit', 'quit', or Ctrl-D.
warn("To exit: use 'exit', 'quit', or Ctrl-D.", stacklevel=1)
As I am new on working with images, so need help to solve this error.
Parse the args like this:
args = ap.parse_args(), and you must give --image or -i parameter when launching the script (because you have required=True)
--A_Z_Handwritten Data.csv: The path to the Kaggle A-Z dataset (Lines 3 and 4)
--HandWritingRecognition: The path to output the trained handwriting recognition model (Lines 5 and 6)
# construct the argument parser and parse the arguments
ap = argparse.ArgumentParser()
ap.add_argument("-a", "--A_Z_Handwritten Data.csv", required=True,
help="path to A-Z dataset")
ap.add_argument("-m", "--HandWritingRecognition", type=str, required=True,
help="path to output trained handwriting recognition mode")
# ap.add_argument("-p", "--plot", type=str, default="plot.png",
# help="/home/gaurav/Desktop/HandWritingRecognition/")
args = vars(ap.parse_args())
This is the error...!
usage: ipykernel_launcher.py [-h] -a A_Z_HANDWRITTEN DATA.CSV -m
HANDWRITINGRECOGNITION
ipykernel_launcher.py: error: the following arguments are required: -a/--A_Z_Handwritten Data.csv, -m/--HandWritingRecognition
An exception has occurred, use %tb to see the full traceback.
SystemExit: 2
How can I run this?
ap = argparse.ArgumentParser()
ap.add_argument("-p", "--shape-predictor", required=True,
help="path to facial landmark predictor")
ap.add_argument("-a", "--alarm", type=str, default="",
help="path alarm .WAV file")
ap.add_argument("-w", "--webcam", type=int, default=0,
help="index of webcam on system")
args = vars(ap.parse_args())
While I run this on Spyder it gives
usage: [-h] -p SHAPE_PREDICTOR [-a ALARM] [-w WEBCAM]
: error: the following arguments are required: -p/--shape-predictor
An exception has occurred, use %tb to see the full traceback.
How can I solve this issue?
From #hiroprotagonist's comment posted above:
In spyder ctrl+F6 should allow you to pass command-line args when you execute your script. see here https://stackoverflow.com/a/26766414/4954037.