python Programming Glossary: expressionsPython strings split with multiple separators http://stackoverflow.com/questions/1059559/python-strings-split-with-multiple-separators split share improve this question A case where regular expressions are justified import re DATA Hey you what are you doing here..
http://stackoverflow.com/questions/15112125/if-x-or-y-or-z-blah improve this question You misunderstand how boolean expressions work. You are looking for if x 1 or y 1 or z 1 x and y are otherwise.. use or python sees each side of the operator as separate expressions. The expression x or y 1 is treated as first a boolean test.. is 'truthy' e.g. not False numeric 0 or empty see boolean expressions for details on what Python considers false in a boolean context..
http://stackoverflow.com/questions/1623039/python-debugging-tips or continue . It is possible to execute arbitrary Python expressions using pdb. For example if you find a mistake you can correct..
Evaluating a mathematical expression in a string http://stackoverflow.com/questions/2371436/evaluating-a-mathematical-expression-in-a-string question Pyparsing can be used to parse mathematical expressions. In particular fourFn.py shows how to parse basic arithmetic.. particular fourFn.py shows how to parse basic arithmetic expressions. Below I've rewrapped fourFn into a numeric parser class for..
Extracting text from HTML file using Python http://stackoverflow.com/questions/328356/extracting-text-from-html-file-using-python notepad. I'd like something more robust than using regular expressions that may fail on poorly formed HTML. I've seen many people recommend..
Ternary conditional operator in Python http://stackoverflow.com/questions/394809/ternary-conditional-operator-in-python else 'false' 'false' Official documentation Conditional expressions Is there an equivalent of C 䏭 ternary operator share improve..
Python list comprehension rebind names even after scope of comprehension. Is this right? http://stackoverflow.com/questions/4198906/python-list-comprehension-rebind-names-even-after-scope-of-comprehension-is-thi equivalence between list comprehensions and generator expressions. In Python 2 the list comprehension leaks the loop control variable.. it definitely stung people occasionally. For generator expressions we could not do this. Generator expressions are implemented.. For generator expressions we could not do this. Generator expressions are implemented using generators whose execution requires a..
Find all occurrences of a substring in Python http://stackoverflow.com/questions/4664850/find-all-occurrences-of-a-substring-in-python looking for but you could use the more powerful regular expressions m.start for m in re.finditer 'test' 'test test test test' 0..
Generator Expressions vs. List Comprehension http://stackoverflow.com/questions/47789/generator-expressions-vs-list-comprehension vs. List Comprehension When should you use generator expressions vs. list comprehensions in Python and vice versa # Generator..
Python string formatting: % vs. .format http://stackoverflow.com/questions/5082452/python-string-formatting-vs-format evaluated. And Python not being a lazy language evaluates expressions before calling functions so in your log.debug example the expression..
Single quotes vs. double quotes in Python [closed] http://stackoverflow.com/questions/56011/single-quotes-vs-double-quotes-in-python quotes for docstrings and raw string literals for regular expressions even if they aren't needed. For example LIGHT_MESSAGES 'English'..
list comprehension without [ ], Python http://stackoverflow.com/questions/9060653/list-comprehension-without-python in PEP 289 . The main difference between generator expressions and list comprehensions is that the former don't create the..
Matching Nested Structures With Regular Expressions in Python http://stackoverflow.com/questions/1099178/matching-nested-structures-with-regular-expressions-in-python Nested Structures With Regular Expressions in Python I seem to remember that Regular Expressions in DotNet.. Expressions in Python I seem to remember that Regular Expressions in DotNet have a special mechanism that allows for the correct..
Parsing S-Expressions in Python http://stackoverflow.com/questions/3182594/parsing-s-expressions-in-python S Expressions in Python Are there any python modules available for parsing..
Variables viewer on Eclipse debugging truncates the string values [duplicate] http://stackoverflow.com/questions/3199611/variables-viewer-on-eclipse-debugging-truncates-the-string-values on the details pane in either the Variables view or the Expressions view there is a Max Length... menu option. You can enter a number..
Regular Expressions: Search in list http://stackoverflow.com/questions/3640359/regular-expressions-search-in-list Expressions Search in list I want to filter strings in a list based on..
What are the differences between Perl, Python, AWK and sed? [closed] http://stackoverflow.com/questions/366980/what-are-the-differences-between-perl-python-awk-and-sed purposes but certainly not PCRE Perl Compatible Regular Expressions The awk program name from the initials of its authors Aho Weinberger.. The patterns are fairly powerful Extended Regular Expressions . The language for the actions is similar to C. One of the key..
sorted() using Generator Expressions Rather Than Lists http://stackoverflow.com/questions/4154571/sorted-using-generator-expressions-rather-than-lists using Generator Expressions Rather Than Lists After seeing the discussion here Python generate..
what is the difference between an Expression and a Statement in Python? http://stackoverflow.com/questions/4728073/what-is-the-difference-between-an-expression-and-a-statement-in-python in Python In Python what is the difference between Expressions and Statements Thanks. python expression statement share.. expression statement share improve this question Expressions only contain identifiers literals and operators where operators..
Generator Expressions vs. List Comprehension http://stackoverflow.com/questions/47789/generator-expressions-vs-list-comprehension Expressions vs. List Comprehension When should you use generator expressions..
What is an expression in Python? http://stackoverflow.com/questions/4782590/what-is-an-expression-in-python occur after print python share improve this question Expressions represent something like a number a string or an instance of.. expression seems like it is making things more confusing. Expressions are nothing but values except they can have operations like..
Python 2.x gotcha's and landmines http://stackoverflow.com/questions/530530/python-2-x-gotchas-and-landmines referenced above. python share improve this question Expressions in default arguments are calculated when the function is defined..
Can I remove script tags with BeautifulSoup? http://stackoverflow.com/questions/5598524/can-i-remove-script-tags-with-beautifulsoup from HTML with BeautifulSoup or do I have to use Regular Expressions or something else python html beautifulsoup share improve..
Regular Expressions to parse template tags in XML http://stackoverflow.com/questions/5878055/regular-expressions-to-parse-template-tags-in-xml Expressions to parse template tags in XML I need to parse some XML to pull..
Basic indexing recurrences of a substring within a string (python) http://stackoverflow.com/questions/6987702/basic-indexing-recurrences-of-a-substring-within-a-string-python built in features packages of the language such as Regular Expressions. I'm also aware that my approach is probably not an optimal..
Perl Compatible Regular Expression (PCRE) in Python http://stackoverflow.com/questions/7063420/perl-compatible-regular-expression-pcre-in-python the current recommendations of UTS#18 Unicode Regular Expressions in how it approaches things. It meets or exceeds the UTS#18..
“Slicing” in Python Expressions documentation http://stackoverflow.com/questions/752602/slicing-in-python-expressions-documentation Slicing&rdquo in Python Expressions documentation I don't understand the following part of the..
http://stackoverflow.com/questions/90052/python-reg-ex-problem say this very clearly. Q How do I parse HTML with Regular Expressions A Please Don't. Use BeautifulSoup html5lib or lxml.html . Please...
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