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Value Error in Python while calling a function


Value Error in Python while calling a function

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Value Error in Python while calling a function
Tag : python , By : walshtp
Date : November 28 2020, 04:01 AM

this will help It looks like you're trying to perform the ReLu function on a matrix, which IIRC will take subzero values and "shift them up" to 0, and will leave positive values unchanged.
Where you've gone wrong, as others have suggested, is that you are missing some basic principles of how the numpy api operates.
def ReLu(x):
    x[x < 0] = 0

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boost python C++ function calling another function error


Tag : python , By : Elwillow
Date : March 29 2020, 07:55 AM
will be helpful for those in need You are passing the lists by value, which requires a copy constructor. The error message is telling you that no copy constructor has been provided for list. The solution therefore is to pass the list by reference:
double getlistvalue(const boost::python::list &l, int index)

Error occurred when python function calling GRASS GIS module and another python function of the same kind


Tag : python , By : Jeskl
Date : March 29 2020, 07:55 AM
will help you Solution: Have the from import grass.script as g in the top level imports i.e. file 1 (function A - v_edit.py) will be:
import os
import sys
import numpy
from GRASSGIS_conn import GRASSGIS_conn
import grass.script as g

def v_edit(map_name, tool, thresh, coords):

    cor = [",".join(item) for item in coords.astype(str)]
    no_of_cors = len(cor)
    i = 0
    while i <= no_of_cors - 1:
        g.run_command('v.edit', map = map_name, tool = tool, threshold = thresh, coords = cor[i])
        i = i + 1

Python: Calling a function inside another function with returned values: Error Handling?


Tag : python , By : Ed.
Date : March 29 2020, 07:55 AM
it should still fix some issue Switch the if regexp_object.match(input_time) for an if not regexp_object.match(input_time), and switch the logic around too:
def function1(input_time):
    """convert time from 24hr format
    into 12hours, minutes, period"""
    period_type = {'AM': 'before midday', 'PM': 'after midday'}
    regexp_object = re.compile(r'^(([01]\d|2[0-3]):([0-5]\d)|23:59)$')
    # Switch to checking if it isn't valid instead, and exit early if that's the case
    if not regexp_object.match(input_time):
        print("{0} doesn't match required format 00:00 to 23:59"
              .format(input_time))
        exit(-1)

    # Since we already returned if the regex didn't match, we know if it reaches this point it'll match
    try:
        time_object = time.strptime(input_time, '%H:%M')
        suffix = time.strftime('%p', time_object)
        hours = int(time.strftime('%I', time_object))
        minutes = time_object[4]
        period = period_type.get(suffix)
        print("{0}:{1} {2}".format(hours, str(minutes).zfill(2), period))
        return hours, minutes, period
    except ValueError as err:
        print(err)

Error while calling C DLL function from Python


Tag : python , By : kdietz
Date : March 29 2020, 07:55 AM
Does that help Listing [Python 3.Docs]: ctypes - A foreign function library for Python.
So, you want to pass an array to a function that expects a pointer. For that case, ctypes.cast is required:
funcao(a, b, input_1, output_1)
funcao(a, b, cast(input_1, POINTER(c_double)), cast(output_1, POINTER(c_double)))
# ...

input_1 = c_double(5)
output_1 = c_double(0)

funcao(a, b, byref(input_1), byref(output_1))

Name error in calling a function in python


Tag : python , By : arbeitandy
Date : March 29 2020, 07:55 AM
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