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...repr on items instead of str. It's only logical to expect following code: class Test: def __str__(self): return "STR" def __repr__(self): return "REPR" test = Test() print(test) print(repr(test)) print([test]) print(str([test])) to print: STR REPR [STR] [STR] where it actually prints: STR REPR [REPR] [REPR] Especially it is illogical to see that print in Python 2 uses str if it is called on what seems to be a tuple: >>> print Decimal('42'), datetime.no...
...repr() adjustable, and make the existing repr() the default. With adjustable repr(), the result of using repr() is unpredictable and would make it impossible to write correct code involving repr(). And if current repr() is the default, then the old convention remains intact and users may expect ASCII strings as the result of repr(). Third party applications or libraries could be confused when a custom repr() function is used. Backwards Compatibility Changing repr() may break some existing ...
...repr(), and format() of enum members should be standardized across the standard library. However, up to Python 3.10 several enums in the standard library have a custom str() and/or repr(). The repr() of Flag currently includes aliases, which it should not; fixing that will, of course, already change its repr() in certain cases. Specification There are three broad categories of enum usage: simple: Enum or Flag a new enum class is created with no data type mixins drop-in replacement: IntEnum, ...
...repr=None): """Create a unique sentinel object.""" repr = repr or f'<{name}>' module = _get_parent_frame().f_globals.get('__name__', '__main__') class_name = _get_class_name(name, module) class_namespace = { '__repr__': lambda self: repr, } cls = type(class_name, (), class_namespace) cls.__module__ = module _get_parent_frame().f_globals[class_name] = cls sentinel = cls() cls.__new__ = lambda cls_: sentinel return sentinel def _get...
...Repr() The str() and repr() functions return the same thing for these objects. The repr() of a bytes object returns a b'...' style literal. The repr() of a bytearray returns a string of the form "bytearray(b'...')". Operators The following operators are implemented by the bytes and bytearray types, except where mentioned: b1 + b2: concatenation. With mixed bytes/bytearray operands, the return type is that of the first argument (this seems arbitrary until you consider how += works). b1 += b2...
...repr. If an exception occurs in module_repr(), the exception is caught and discarded, and the calculation of the module's repr continues as if module_repr() did not exist. If the module has an __file__ attribute, this is used as part of the module's repr. If the module has no __file__ but does have an __loader__, then the loader's repr is used as part of the module's repr. Otherwise, just use the module's __name__ in the repr. Here is a snippet showing how namespace module reprs are calculated ...
...repr() for UCS-4 encoded unicode strings <h2>PSF-2006-001 - Buffer overrun in repr() for UCS-4 encoded unicode strings</h2> <hr> <h3>Python Security Advisory</h3> <pre><b> Advisory ID: <a href="/files/news/security/PSF-2006-001/PSF-2006-001.txt">PSF-2006-001</a> Issue Date: October 12, 2006 Product: Python Versions: 2.2, 2.3 prior to 2.3.6, 2.4 prior to 2.4.4, wide unicode (UCS-4) builds only CVE Names: CAN-2006-498...
...repr on it just before I need it? Could this be a problem with refcounting objects inserted in the dictionary (doesn't seem likely given that PyDict_SetItem is said to store it's own references to objects). As I said, it's not the printing, it's the repr() call. I don't expect repr() to save a reference to your object, unless you implemented the object type yourself (then it could be a bug in your tp_repr or tp_str function). 3) Anyone else becoming _really_ interested in a b...
...repr() functions are now different more often. For long integers, str() no longer appends a 'L'. Thus, str(1L) == '1', which used to be '1L'; repr(1L) is unchanged and still returns '1L'. For floats, repr() now gives 17 digits of precision, to ensure no precision is lost (on all current hardware). The -X option is gone. Built-in exceptions are now always classes. Many more library modules also have been converted to class-based exceptions. Binary Incompatibiliti...
...repr(f.__doc__) print repr(g()) prints: '\n\tla-la-la\n\tlimona, banana\n\t' 'This is \tstring' This PEP suggest two things: ignore the first character after opening quotation, if it is newline ignore in string constants all spaces and tabs up to first non-whitespace character, but no more than current indentation. After applying this, previous program will print: 'la-la-la\nlimona, banana\n' 'This is string' To get this result, previous programs could be rewritten for current Python as (...
...repr() of unicode strings in wide unicode builds (UCS-4) Python 2.3 is now well and truly in bugfix-only mode; no new features are being added, and only security critical bugs have been fixed. There are 3 bugs fixed in this release - a problem with the email package's handling of RFC2231 headers, the unicode repr() fix for PSF-2006-01, and a fix for the deprecated PCRE module. See the detailed release notes for more details. Python 2.5 and Python 2.4 are newer releases of Python. This release o...
Version: None
Released: Nov. 1, 2006
Python 2.3 is now well and truly in bugfix-only mode; no new features are being added, and only security critical bugs have been fixed. There are 3 bugs fixed in this release - a problem with the …
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...repr() functions are now different more often. For long integers, str() no longer appends a 'L'. Thus, str(1L) == '1', which used to be '1L'; repr(1L) is unchanged and still returns '1L'. For floats, repr() now gives 17 digits of precision, to ensure no precision is lost (on all current hardware). The -X option is gone. Built-in exceptions are now always classes. Many more library modules also have been converted to class-based exceptions. Binary Incompatibilities Third party extensions b...
...repr=True, eq=True, order=False, unsafe_hash=False, frozen=False) class C: ... The parameters to dataclass are: init: If true (the default), a __init__ method will be generated. repr: If true (the default), a __repr__ method will be generated. The generated repr string will have the class name and the name and repr of each field, in the order they are defined in the class. Fields that are marked as being excluded from the repr are not included. For example: InventoryItem(name='widget',...
...repr() of a long int returns a string ending in L while repr() of a short int doesn't. The L will be dropped; but not before Python 3.0. Currently, an operation with long operands will never return a short int. This may change, since it allows some optimization. (No changes have been made in this area yet, and none are planned.) The expression type(x).__name__ depends on whether x is a short or a long int. Since implementation alternative 2 is chosen, this difference will remain. (In Python ...
...repr() of unicode strings in wide unicode builds (UCS-4)". This fix is included in Python 2.4.4 and Python 2.5. If you need to remain with Python 2.2, there's a patch available from the security advisory page. We are pleased to announce the release of Python 2.2.2, on October 14, 2002. This is a bug-fix release for Python 2.2 and supersedes the previous bugfix release, Python 2.2.1. Download the release Windows users should download the Windows installer, Python-2.2...
...repr() of unicode strings in wide unicode builds (UCS-4)". This fix is included in Python 2.4.4 and Python 2.5. If you need to remain with Python 2.2, there's a patch available from the security advisory page. We are pleased to announce the release of Python 2.2.1, on April 10, 2002. This is a bug-fix release for Python 2.2 and supersedes the 2.2 release. Download the release Windows users should download the Windows installer, Python-2.2.1.exe, run it and follow the ...
...repr() and backticks, or the two inequality operators != and <>. In all cases, Python 3 has chosen exactly one spelling and removed the other (e.g. repr() and != were kept). Imports In Python 3, implicit relative imports within packages are no longer available - only absolute imports and explicit relative imports are supported. In addition, star imports (e.g. from x import *) are only permitted in module level code. Also, some areas of the standard library have been reorganized to make ...
...repr(float('inf')) are now guaranteed to work on every supported platform with IEEE 754 semantics. However the eval(repr(float('inf'))) roundtrip is still not supported unless you define inf and nan yourself: >>> inf = float('inf') >>> inf, 1E400 (inf, inf) >>> neginf = float('-inf') >>> neginf, -1E400 (-inf, -inf) >>> nan = float('nan') >>> nan, inf * 0. (nan, nan) The math and the sys module also have gained additional features, sys.float...
...repr does not implement __get__ to bind as a method: >>> class X: ... meth = repr >>> x = X() >>> x.meth() Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: repr() takes exactly one argument (0 given) In this example, one would have expected that x.meth() returns repr(x) by applying the normal rules of methods. This is surprising and a needless difference between cfunctions and Python functions. For the standard built...