Case1: All values in the string are numeric. After successfully analyzing the pattern of data, we then proceed to perform the type conversion.įor example, consider the following cases: The above technique is essentially an algorithm which uses the Regular Expression library along with an algorithm to analyze the data-types of elements being inserted. Taking multiple inputs from user in Python.Python | Program to convert String to a List.isupper(), islower(), lower(), upper() in Python and their applications.Print lists in Python (4 Different Ways).Different ways to create Pandas Dataframe.Reading and Writing to text files in Python.Python program to convert a list to string.How to get column names in Pandas dataframe.Adding new column to existing DataFrame in Pandas.ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.# had been sampled and sentinel substituted where StopIteration happened. # tup starts with the tuple that would have been returned if all sequences Zipit = izip(*seqs) # bind iterator object to preserve access to its state later Could modify izip so that one could write OTOH, this >approach is at odds with the notion of side-effect free functional >programming and the purported benefits of that programming style. Testing the wrapper object for >StopIteration would be akin to else-clauses in a for-loop. While less direct than >a customized zip method, the wrapper may be useful in contexts other >than zipping - essentially, anywhere it is inconvenient to have just >consumed an iterator element. Could create an iterator wrapper that remembers its last accessed >item and whether StopIteration has been raised. >Though the use case seems like it would be common, there may be a >reason this hasn't come up since zip() was introduced way back in >Py2.0. Could punt and leave this for straight-forward while-loop coding. Could point people to the roundrobin() recipe in the >que docs - it solves a closely related problem but is >not exactly what the OP needed (his use case required knowing which >iterator gave birth to each datum). How or whether such a function would be >used can likely be answered by mining real-world code for cases where >map's None fill-in feature was used. The function >would also need periodic signal checks to make it possible to break-out >if one the inputs is infinite. Instead of None, a user specified >default value would be helpful in cases where the input data stream >could potentially have None as a valid data element. Could add a new function with None fill-in - essentially an >iterator version of map(None, a,b). >This approach is kludgy and unlikely to lead to beautiful code, but it >does at least make accessible data that would otherwise be tossed. Could add an optional arg to zip()/izip() with a mutable container >to hold a final, incomplete tuple: final= zip(a,b,leftover=final). Hard to assure retro-fitting for every possible kind of >iterator or iterable. >Paul Rubin wrote: > What do you think of my suggestion of passing an optional arg to the > StopIteration constructor, that the caller can use to resume the > iterator or take other suitable recovery steps? Maybe this could > interact with PEP 343 in some useful way.
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