10 examples of 'how to find a string in a text file using python' in Python

77
def _find_line(string, file_name):
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    """
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    find the first occurence of a string in a file
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    """
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    with open(file_name, 'r') as fi:
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        for line in fi:
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            if string in line:
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                return line

453
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

94
def get_file(file_name):
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    return ''.join(get_file_lines(file_name))

29
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

18
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

69
def get_text(path):
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    with io.open(path, mode='r', encoding='utf-8-sig', newline=None) as f:
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        return f.read()

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def read_file(path):
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    if path == '-':
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        lines = sys.stdin.readlines()
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    else:
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        try:
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            f = open(path)
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        except IOError as msg:
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            print('open %s: %s' % (path, msg), file=sys.stderr)
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            sys.exit(1)
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        lines = f.readlines()
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        f.close()
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    return ''.join(lines)

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def read_source(filename: str):
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    """Treat *source* as a filename or a string with content."""
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    return pathlib.Path(filename).read_text(encoding='utf-8')

5
def load_text(path):
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    with open(path, 'r', encoding = 'utf8') as f:
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        text = f.read().strip()
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    return text

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def _load_text(text_path):
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  with open(text_path + '.txt', 'r', encoding='utf-8') as fin:
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    text = ' '.join([line.strip() for line in fin.readlines()])
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    return text