10 examples of 'how to open text file in python' in Python

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def open_python_file(filename):
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    """Open a read-only Python file taking proper care of its encoding.
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    In Python 3, we would like all files to be opened with utf-8 encoding.
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    However, some author like to specify PEP263 headers in their source files
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    with their own encodings. In that case, we should respect the author's
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    encoding.
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    """
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    import tokenize
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    if hasattr(tokenize, "open"):  # Added in Python 3.2
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        # Open file respecting PEP263 encoding. If no encoding header is
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        # found, opens as utf-8.
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        return tokenize.open(filename)
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    else:
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        return open(filename, "r")

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def open_source_file(filename):
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    with open(filename, "rb") as byte_stream:
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        encoding = detect_encoding(byte_stream.readline)[0]
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    stream = open(filename, "r", newline=None, encoding=encoding)
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    data = stream.read()
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    return stream, encoding, data

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def read_text_file(filename, encoding="utf-8"):
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    """
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    Reads a file under python3 with encoding (default UTF-8).
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    Also works under python2, without encoding.
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    Uses the EAFP (https://docs.python.org/2/glossary.html#term-eafp)
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    principle.
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    """
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    try:
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        with open(filename, 'r', encoding) as f:
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            r = f.read()
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    except TypeError:
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        with open(filename, 'r') as f:
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            r = f.read()
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    return r

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def prepare_file(text):
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    if _python2:
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        result = IOModule('my file contents')
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    else:
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        result = IOModule(b'my file contents')
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    return result

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def open_file(file_path):
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    global file
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    file = open(file_path, 'wb')
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    reset()

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def read_python_source(file):
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    with open(file, 'rb') as fd:
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        data = fd.read()
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        if PY3:
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            data = decode_source(data)
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        return data

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def open_source_file(filename):
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    with open(filename, 'rb') as byte_stream:
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        encoding = detect_encoding(byte_stream.readline)[0]
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    stream = open(filename, 'r', newline=None, encoding=encoding)
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    try:
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        data = stream.read()
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    except UnicodeError:  # wrong encoding
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        # detect_encoding returns utf-8 if no encoding specified
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        msg = 'Wrong (%s) or no encoding specified' % encoding
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        raise exceptions.AstroidBuildingException(msg)
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    return stream, encoding, data

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def open_file(self):
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    self.f = codecs.open(self.path, "w", encoding='utf-8')

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def open(self, event=None):
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    '''
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    Open given file
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    '''
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    with open(self.file.path, encoding='UTF-8') as file:
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        file_text = file.read()
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        if file_text:
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            self.modified_event_triggered_by_opening_file = True
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            self.insert(tk.END, file_text)

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def new_file(self):
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    pass