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Write a python function to generate SHA256 for given text

def get_sha256(text):
    import hashlib
    return hashlib.sha256(text).hexdigest()

Write a python function to check if SHA256 hashed value is valid for given data or not

def check_sha256_hash(hashed, data):
    import hashlib
    return True if hashed == hashlib.sha256(data.encode()).hexdigest() else False

Write a python function to get HTML code for a given URL

def get_html(url="http://www.python.org"):
    import urllib.request

    fp = urllib.request.urlopen(url)
    mybytes = fp.read()
    mystr = mybytes.decode("utf8")
    fp.close()
    print(mystr)