The following code gets the numbers in the given string except the decimal>>> m = re.match(r"(\d+)\.(\d+)", "80.3196") >>> m.groups() ('80', '3196')

Both re.match() and re.search() are methods of the Python module re.The re.match() method finds match if it occurs at start of the string. For example, calling match() on the string ‘TP Tutorials Point TP’ and looking for a pattern ‘TP’ will match.Exampleresult = re.match(r'TP', 'TP Tutorials Point TP') print result.group(0)OutputTPThe ... Read More

The following matches and prints just spaces and newlines in the given string using Python regexExampleimport re foo = ' I find   Tutorialspoint   useful' result = re.findall(r'\s+', foo) print resultOutputThis gives the output[' ', ' ', ' ', ' ']

Recursion Recursion is useful in dividing and solving problems. Each recursive call itself spins off other recursive calls. At the centre of a recursive function are two types of cases: base cases, which tell the recursion when to terminate, and recursive cases that call the function they are in. A simple ... Read More

The following code splits on successions of newline characters in the following string using Python regexExampleimport re s = """I find  Tutorialspoint   useful""" print re.split(r"[]", s)OutputThis gives the output['I find', '    Tutorialspoint', '     useful']

The following code strips the spaces/tabs/newlines from given string using Python regexWe use '\S' in regex which stands for all non-whitespace charactersExampleimport re print re.findall(r"[\S]", """I find     Tutorialspoint useful""")OutputThis gives the output['I', 'f', 'i', 'n', 'd', 'T', 'u', 't', 'o', 'r', 'i', 'a', 'l', 's', 'p', 'o', 'i', ... Read More

The following code matches only the whitespaces but not newlines in the given stringExampleimport re print re.findall(r"(\s){1,}","""I find     Tutorialspoint useful""")OutputThis gives the output[' ', ' ', ' ']

The following code does the replacement in the given text file. After the replacement, the text is written to a new text file 'bar.txt'Examplef1 = open('foo.txt', 'r') f2 = open('bar.txt', 'w') for line in f1:     print line     f2.write(line.replace('Poetry', 'Prose')) f2 = open('bar.txt', 'r') for line in f2: ... Read More

The following code matches anything except space and new line in the given string using regex.Exampleimport re print re.match(r'^[^ ]*$', """IfindTutorialspointuseful""") print re.match(r'^[^ ]*$', """I find Tutorialspointuseful""") print re.match(r'^[^ ]*$', """Ifind Tutorialspointuseful""")OutputThis gives the output None None

There are many modules available in both the standard library and the PiPy repository for date manipulation. The most popular among these libraries are the following(in no particular order) −datetime (Standard library) − The datetime module supplies classes for manipulating dates and times in both simple and complex ways. While ... Read More