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lexical_analysis.po
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# SOME DESCRIPTIVE TITLE.
# Copyright (C) 2001-2025, Python Software Foundation
# This file is distributed under the same license as the Python package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
# Translators:
# Maciej Olko <[email protected]>, 2024
# Stan Ulbrych, 2025
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: Python 3.13\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2025-04-04 14:18+0000\n"
"PO-Revision-Date: 2021-06-28 01:49+0000\n"
"Last-Translator: Stan Ulbrych, 2025\n"
"Language-Team: Polish (https://app.transifex.com/python-doc/teams/5390/pl/)\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Language: pl\n"
"Plural-Forms: nplurals=4; plural=(n==1 ? 0 : (n%10>=2 && n%10<=4) && "
"(n%100<12 || n%100>14) ? 1 : n!=1 && (n%10>=0 && n%10<=1) || (n%10>=5 && "
"n%10<=9) || (n%100>=12 && n%100<=14) ? 2 : 3);\n"
msgid "Lexical analysis"
msgstr ""
msgid ""
"A Python program is read by a *parser*. Input to the parser is a stream of :"
"term:`tokens <token>`, generated by the *lexical analyzer* (also known as "
"the *tokenizer*). This chapter describes how the lexical analyzer breaks a "
"file into tokens."
msgstr ""
msgid ""
"Python reads program text as Unicode code points; the encoding of a source "
"file can be given by an encoding declaration and defaults to UTF-8, see :pep:"
"`3120` for details. If the source file cannot be decoded, a :exc:"
"`SyntaxError` is raised."
msgstr ""
msgid "Line structure"
msgstr ""
msgid "A Python program is divided into a number of *logical lines*."
msgstr ""
msgid "Logical lines"
msgstr ""
msgid ""
"The end of a logical line is represented by the token NEWLINE. Statements "
"cannot cross logical line boundaries except where NEWLINE is allowed by the "
"syntax (e.g., between statements in compound statements). A logical line is "
"constructed from one or more *physical lines* by following the explicit or "
"implicit *line joining* rules."
msgstr ""
msgid "Physical lines"
msgstr ""
msgid ""
"A physical line is a sequence of characters terminated by an end-of-line "
"sequence. In source files and strings, any of the standard platform line "
"termination sequences can be used - the Unix form using ASCII LF (linefeed), "
"the Windows form using the ASCII sequence CR LF (return followed by "
"linefeed), or the old Macintosh form using the ASCII CR (return) character. "
"All of these forms can be used equally, regardless of platform. The end of "
"input also serves as an implicit terminator for the final physical line."
msgstr ""
msgid ""
"When embedding Python, source code strings should be passed to Python APIs "
"using the standard C conventions for newline characters (the ``\\n`` "
"character, representing ASCII LF, is the line terminator)."
msgstr ""
msgid "Comments"
msgstr ""
msgid ""
"A comment starts with a hash character (``#``) that is not part of a string "
"literal, and ends at the end of the physical line. A comment signifies the "
"end of the logical line unless the implicit line joining rules are invoked. "
"Comments are ignored by the syntax."
msgstr ""
msgid "Encoding declarations"
msgstr ""
msgid ""
"If a comment in the first or second line of the Python script matches the "
"regular expression ``coding[=:]\\s*([-\\w.]+)``, this comment is processed "
"as an encoding declaration; the first group of this expression names the "
"encoding of the source code file. The encoding declaration must appear on a "
"line of its own. If it is the second line, the first line must also be a "
"comment-only line. The recommended forms of an encoding expression are ::"
msgstr ""
msgid "# -*- coding: <encoding-name> -*-"
msgstr ""
msgid "which is recognized also by GNU Emacs, and ::"
msgstr ""
msgid "# vim:fileencoding=<encoding-name>"
msgstr ""
msgid "which is recognized by Bram Moolenaar's VIM."
msgstr ""
msgid ""
"If no encoding declaration is found, the default encoding is UTF-8. If the "
"implicit or explicit encoding of a file is UTF-8, an initial UTF-8 byte-"
"order mark (b'\\xef\\xbb\\xbf') is ignored rather than being a syntax error."
msgstr ""
msgid ""
"If an encoding is declared, the encoding name must be recognized by Python "
"(see :ref:`standard-encodings`). The encoding is used for all lexical "
"analysis, including string literals, comments and identifiers."
msgstr ""
msgid "Explicit line joining"
msgstr ""
msgid ""
"Two or more physical lines may be joined into logical lines using backslash "
"characters (``\\``), as follows: when a physical line ends in a backslash "
"that is not part of a string literal or comment, it is joined with the "
"following forming a single logical line, deleting the backslash and the "
"following end-of-line character. For example::"
msgstr ""
msgid ""
"if 1900 < year < 2100 and 1 <= month <= 12 \\\n"
" and 1 <= day <= 31 and 0 <= hour < 24 \\\n"
" and 0 <= minute < 60 and 0 <= second < 60: # Looks like a valid date\n"
" return 1"
msgstr ""
msgid ""
"A line ending in a backslash cannot carry a comment. A backslash does not "
"continue a comment. A backslash does not continue a token except for string "
"literals (i.e., tokens other than string literals cannot be split across "
"physical lines using a backslash). A backslash is illegal elsewhere on a "
"line outside a string literal."
msgstr ""
msgid "Implicit line joining"
msgstr ""
msgid ""
"Expressions in parentheses, square brackets or curly braces can be split "
"over more than one physical line without using backslashes. For example::"
msgstr ""
msgid ""
"month_names = ['Januari', 'Februari', 'Maart', # These are the\n"
" 'April', 'Mei', 'Juni', # Dutch names\n"
" 'Juli', 'Augustus', 'September', # for the months\n"
" 'Oktober', 'November', 'December'] # of the year"
msgstr ""
msgid ""
"Implicitly continued lines can carry comments. The indentation of the "
"continuation lines is not important. Blank continuation lines are allowed. "
"There is no NEWLINE token between implicit continuation lines. Implicitly "
"continued lines can also occur within triple-quoted strings (see below); in "
"that case they cannot carry comments."
msgstr ""
msgid "Blank lines"
msgstr ""
msgid ""
"A logical line that contains only spaces, tabs, formfeeds and possibly a "
"comment, is ignored (i.e., no NEWLINE token is generated). During "
"interactive input of statements, handling of a blank line may differ "
"depending on the implementation of the read-eval-print loop. In the "
"standard interactive interpreter, an entirely blank logical line (i.e. one "
"containing not even whitespace or a comment) terminates a multi-line "
"statement."
msgstr ""
msgid "Indentation"
msgstr ""
msgid ""
"Leading whitespace (spaces and tabs) at the beginning of a logical line is "
"used to compute the indentation level of the line, which in turn is used to "
"determine the grouping of statements."
msgstr ""
msgid ""
"Tabs are replaced (from left to right) by one to eight spaces such that the "
"total number of characters up to and including the replacement is a multiple "
"of eight (this is intended to be the same rule as used by Unix). The total "
"number of spaces preceding the first non-blank character then determines the "
"line's indentation. Indentation cannot be split over multiple physical "
"lines using backslashes; the whitespace up to the first backslash determines "
"the indentation."
msgstr ""
msgid ""
"Indentation is rejected as inconsistent if a source file mixes tabs and "
"spaces in a way that makes the meaning dependent on the worth of a tab in "
"spaces; a :exc:`TabError` is raised in that case."
msgstr ""
msgid ""
"**Cross-platform compatibility note:** because of the nature of text editors "
"on non-UNIX platforms, it is unwise to use a mixture of spaces and tabs for "
"the indentation in a single source file. It should also be noted that "
"different platforms may explicitly limit the maximum indentation level."
msgstr ""
msgid ""
"A formfeed character may be present at the start of the line; it will be "
"ignored for the indentation calculations above. Formfeed characters "
"occurring elsewhere in the leading whitespace have an undefined effect (for "
"instance, they may reset the space count to zero)."
msgstr ""
msgid ""
"The indentation levels of consecutive lines are used to generate INDENT and "
"DEDENT tokens, using a stack, as follows."
msgstr ""
msgid ""
"Before the first line of the file is read, a single zero is pushed on the "
"stack; this will never be popped off again. The numbers pushed on the stack "
"will always be strictly increasing from bottom to top. At the beginning of "
"each logical line, the line's indentation level is compared to the top of "
"the stack. If it is equal, nothing happens. If it is larger, it is pushed on "
"the stack, and one INDENT token is generated. If it is smaller, it *must* "
"be one of the numbers occurring on the stack; all numbers on the stack that "
"are larger are popped off, and for each number popped off a DEDENT token is "
"generated. At the end of the file, a DEDENT token is generated for each "
"number remaining on the stack that is larger than zero."
msgstr ""
msgid ""
"Here is an example of a correctly (though confusingly) indented piece of "
"Python code::"
msgstr ""
msgid ""
"def perm(l):\n"
" # Compute the list of all permutations of l\n"
" if len(l) <= 1:\n"
" return [l]\n"
" r = []\n"
" for i in range(len(l)):\n"
" s = l[:i] + l[i+1:]\n"
" p = perm(s)\n"
" for x in p:\n"
" r.append(l[i:i+1] + x)\n"
" return r"
msgstr ""
msgid "The following example shows various indentation errors::"
msgstr ""
msgid ""
" def perm(l): # error: first line indented\n"
"for i in range(len(l)): # error: not indented\n"
" s = l[:i] + l[i+1:]\n"
" p = perm(l[:i] + l[i+1:]) # error: unexpected indent\n"
" for x in p:\n"
" r.append(l[i:i+1] + x)\n"
" return r # error: inconsistent dedent"
msgstr ""
msgid ""
"(Actually, the first three errors are detected by the parser; only the last "
"error is found by the lexical analyzer --- the indentation of ``return r`` "
"does not match a level popped off the stack.)"
msgstr ""
msgid "Whitespace between tokens"
msgstr ""
msgid ""
"Except at the beginning of a logical line or in string literals, the "
"whitespace characters space, tab and formfeed can be used interchangeably to "
"separate tokens. Whitespace is needed between two tokens only if their "
"concatenation could otherwise be interpreted as a different token (e.g., ab "
"is one token, but a b is two tokens)."
msgstr ""
msgid "Other tokens"
msgstr ""
msgid ""
"Besides NEWLINE, INDENT and DEDENT, the following categories of tokens "
"exist: *identifiers*, *keywords*, *literals*, *operators*, and *delimiters*. "
"Whitespace characters (other than line terminators, discussed earlier) are "
"not tokens, but serve to delimit tokens. Where ambiguity exists, a token "
"comprises the longest possible string that forms a legal token, when read "
"from left to right."
msgstr ""
msgid "Identifiers and keywords"
msgstr ""
msgid ""
"Identifiers (also referred to as *names*) are described by the following "
"lexical definitions."
msgstr ""
msgid ""
"The syntax of identifiers in Python is based on the Unicode standard annex "
"UAX-31, with elaboration and changes as defined below; see also :pep:`3131` "
"for further details."
msgstr ""
msgid ""
"Within the ASCII range (U+0001..U+007F), the valid characters for "
"identifiers include the uppercase and lowercase letters ``A`` through ``Z``, "
"the underscore ``_`` and, except for the first character, the digits ``0`` "
"through ``9``. Python 3.0 introduced additional characters from outside the "
"ASCII range (see :pep:`3131`). For these characters, the classification "
"uses the version of the Unicode Character Database as included in the :mod:"
"`unicodedata` module."
msgstr ""
msgid "Identifiers are unlimited in length. Case is significant."
msgstr ""
msgid "The Unicode category codes mentioned above stand for:"
msgstr ""
msgid "*Lu* - uppercase letters"
msgstr ""
msgid "*Ll* - lowercase letters"
msgstr ""
msgid "*Lt* - titlecase letters"
msgstr ""
msgid "*Lm* - modifier letters"
msgstr ""
msgid "*Lo* - other letters"
msgstr ""
msgid "*Nl* - letter numbers"
msgstr ""
msgid "*Mn* - nonspacing marks"
msgstr ""
msgid "*Mc* - spacing combining marks"
msgstr ""
msgid "*Nd* - decimal numbers"
msgstr ""
msgid "*Pc* - connector punctuations"
msgstr ""
msgid ""
"*Other_ID_Start* - explicit list of characters in `PropList.txt <https://www."
"unicode.org/Public/15.1.0/ucd/PropList.txt>`_ to support backwards "
"compatibility"
msgstr ""
msgid "*Other_ID_Continue* - likewise"
msgstr ""
msgid ""
"All identifiers are converted into the normal form NFKC while parsing; "
"comparison of identifiers is based on NFKC."
msgstr ""
msgid ""
"A non-normative HTML file listing all valid identifier characters for "
"Unicode 15.1.0 can be found at https://www.unicode.org/Public/15.1.0/ucd/"
"DerivedCoreProperties.txt"
msgstr ""
msgid "Keywords"
msgstr ""
msgid ""
"The following identifiers are used as reserved words, or *keywords* of the "
"language, and cannot be used as ordinary identifiers. They must be spelled "
"exactly as written here:"
msgstr ""
msgid ""
"False await else import pass\n"
"None break except in raise\n"
"True class finally is return\n"
"and continue for lambda try\n"
"as def from nonlocal while\n"
"assert del global not with\n"
"async elif if or yield"
msgstr ""
msgid "Soft Keywords"
msgstr ""
msgid ""
"Some identifiers are only reserved under specific contexts. These are known "
"as *soft keywords*. The identifiers ``match``, ``case``, ``type`` and ``_`` "
"can syntactically act as keywords in certain contexts, but this distinction "
"is done at the parser level, not when tokenizing."
msgstr ""
msgid ""
"As soft keywords, their use in the grammar is possible while still "
"preserving compatibility with existing code that uses these names as "
"identifier names."
msgstr ""
msgid ""
"``match``, ``case``, and ``_`` are used in the :keyword:`match` statement. "
"``type`` is used in the :keyword:`type` statement."
msgstr ""
msgid "``type`` is now a soft keyword."
msgstr ""
msgid "Reserved classes of identifiers"
msgstr ""
msgid ""
"Certain classes of identifiers (besides keywords) have special meanings. "
"These classes are identified by the patterns of leading and trailing "
"underscore characters:"
msgstr ""
msgid "``_*``"
msgstr "``_*``"
msgid "Not imported by ``from module import *``."
msgstr ""
msgid "``_``"
msgstr "``_``"
msgid ""
"In a ``case`` pattern within a :keyword:`match` statement, ``_`` is a :ref:"
"`soft keyword <soft-keywords>` that denotes a :ref:`wildcard <wildcard-"
"patterns>`."
msgstr ""
msgid ""
"Separately, the interactive interpreter makes the result of the last "
"evaluation available in the variable ``_``. (It is stored in the :mod:"
"`builtins` module, alongside built-in functions like ``print``.)"
msgstr ""
msgid ""
"Elsewhere, ``_`` is a regular identifier. It is often used to name "
"\"special\" items, but it is not special to Python itself."
msgstr ""
msgid ""
"The name ``_`` is often used in conjunction with internationalization; refer "
"to the documentation for the :mod:`gettext` module for more information on "
"this convention."
msgstr ""
msgid "It is also commonly used for unused variables."
msgstr ""
msgid "``__*__``"
msgstr "``__*__``"
msgid ""
"System-defined names, informally known as \"dunder\" names. These names are "
"defined by the interpreter and its implementation (including the standard "
"library). Current system names are discussed in the :ref:`specialnames` "
"section and elsewhere. More will likely be defined in future versions of "
"Python. *Any* use of ``__*__`` names, in any context, that does not follow "
"explicitly documented use, is subject to breakage without warning."
msgstr ""
msgid "``__*``"
msgstr "``__*``"
msgid ""
"Class-private names. Names in this category, when used within the context "
"of a class definition, are re-written to use a mangled form to help avoid "
"name clashes between \"private\" attributes of base and derived classes. See "
"section :ref:`atom-identifiers`."
msgstr ""
msgid "Literals"
msgstr ""
msgid "Literals are notations for constant values of some built-in types."
msgstr ""
msgid "String and Bytes literals"
msgstr ""
msgid "String literals are described by the following lexical definitions:"
msgstr ""
msgid ""
"One syntactic restriction not indicated by these productions is that "
"whitespace is not allowed between the :token:`~python-grammar:stringprefix` "
"or :token:`~python-grammar:bytesprefix` and the rest of the literal. The "
"source character set is defined by the encoding declaration; it is UTF-8 if "
"no encoding declaration is given in the source file; see section :ref:"
"`encodings`."
msgstr ""
msgid ""
"In plain English: Both types of literals can be enclosed in matching single "
"quotes (``'``) or double quotes (``\"``). They can also be enclosed in "
"matching groups of three single or double quotes (these are generally "
"referred to as *triple-quoted strings*). The backslash (``\\``) character is "
"used to give special meaning to otherwise ordinary characters like ``n``, "
"which means 'newline' when escaped (``\\n``). It can also be used to escape "
"characters that otherwise have a special meaning, such as newline, backslash "
"itself, or the quote character. See :ref:`escape sequences <escape-"
"sequences>` below for examples."
msgstr ""
msgid ""
"Bytes literals are always prefixed with ``'b'`` or ``'B'``; they produce an "
"instance of the :class:`bytes` type instead of the :class:`str` type. They "
"may only contain ASCII characters; bytes with a numeric value of 128 or "
"greater must be expressed with escapes."
msgstr ""
msgid ""
"Both string and bytes literals may optionally be prefixed with a letter "
"``'r'`` or ``'R'``; such constructs are called :dfn:`raw string literals` "
"and :dfn:`raw bytes literals` respectively and treat backslashes as literal "
"characters. As a result, in raw string literals, ``'\\U'`` and ``'\\u'`` "
"escapes are not treated specially."
msgstr ""
msgid ""
"The ``'rb'`` prefix of raw bytes literals has been added as a synonym of "
"``'br'``."
msgstr ""
msgid ""
"Support for the unicode legacy literal (``u'value'``) was reintroduced to "
"simplify the maintenance of dual Python 2.x and 3.x codebases. See :pep:"
"`414` for more information."
msgstr ""
msgid ""
"A string literal with ``'f'`` or ``'F'`` in its prefix is a :dfn:`formatted "
"string literal`; see :ref:`f-strings`. The ``'f'`` may be combined with "
"``'r'``, but not with ``'b'`` or ``'u'``, therefore raw formatted strings "
"are possible, but formatted bytes literals are not."
msgstr ""
msgid ""
"In triple-quoted literals, unescaped newlines and quotes are allowed (and "
"are retained), except that three unescaped quotes in a row terminate the "
"literal. (A \"quote\" is the character used to open the literal, i.e. "
"either ``'`` or ``\"``.)"
msgstr ""
msgid "Escape sequences"
msgstr ""
msgid ""
"Unless an ``'r'`` or ``'R'`` prefix is present, escape sequences in string "
"and bytes literals are interpreted according to rules similar to those used "
"by Standard C. The recognized escape sequences are:"
msgstr ""
msgid "Escape Sequence"
msgstr ""
msgid "Meaning"
msgstr "Znaczenie"
msgid "Notes"
msgstr "Notatki"
msgid "``\\``\\ <newline>"
msgstr ""
msgid "Backslash and newline ignored"
msgstr ""
msgid "\\(1)"
msgstr "\\(1)"
msgid "``\\\\``"
msgstr "``\\\\``"
msgid "Backslash (``\\``)"
msgstr ""
msgid "``\\'``"
msgstr "``\\'``"
msgid "Single quote (``'``)"
msgstr ""
msgid "``\\\"``"
msgstr "``\\\"``"
msgid "Double quote (``\"``)"
msgstr ""
msgid "``\\a``"
msgstr "``\\a``"
msgid "ASCII Bell (BEL)"
msgstr ""
msgid "``\\b``"
msgstr "``\\b``"
msgid "ASCII Backspace (BS)"
msgstr ""
msgid "``\\f``"
msgstr "``\\f``"
msgid "ASCII Formfeed (FF)"
msgstr ""
msgid "``\\n``"
msgstr "``\\n``"
msgid "ASCII Linefeed (LF)"
msgstr ""
msgid "``\\r``"
msgstr "``\\r``"
msgid "ASCII Carriage Return (CR)"
msgstr ""
msgid "``\\t``"
msgstr "``\\t``"
msgid "ASCII Horizontal Tab (TAB)"
msgstr ""
msgid "``\\v``"
msgstr "``\\v``"
msgid "ASCII Vertical Tab (VT)"
msgstr ""
msgid ":samp:`\\\\\\\\{ooo}`"
msgstr ":samp:`\\\\\\\\{ooo}`"
msgid "Character with octal value *ooo*"
msgstr ""
msgid "(2,4)"
msgstr ""
msgid ":samp:`\\\\x{hh}`"
msgstr ":samp:`\\\\x{hh}`"
msgid "Character with hex value *hh*"
msgstr ""
msgid "(3,4)"
msgstr ""
msgid "Escape sequences only recognized in string literals are:"
msgstr ""
msgid ":samp:`\\\\N\\\\{{name}\\\\}`"
msgstr ":samp:`\\\\N\\\\{{name}\\\\}`"
msgid "Character named *name* in the Unicode database"
msgstr ""
msgid "\\(5)"
msgstr "\\(5)"
msgid ":samp:`\\\\u{xxxx}`"
msgstr ":samp:`\\\\u{xxxx}`"
msgid "Character with 16-bit hex value *xxxx*"
msgstr ""
msgid "\\(6)"
msgstr ""
msgid ":samp:`\\\\U{xxxxxxxx}`"
msgstr ":samp:`\\\\U{xxxxxxxx}`"
msgid "Character with 32-bit hex value *xxxxxxxx*"
msgstr ""
msgid "\\(7)"
msgstr ""
msgid "Notes:"
msgstr "Uwagi:"
msgid "A backslash can be added at the end of a line to ignore the newline::"
msgstr ""
msgid ""
">>> 'This string will not include \\\n"
"... backslashes or newline characters.'\n"
"'This string will not include backslashes or newline characters.'"
msgstr ""
msgid ""
"The same result can be achieved using :ref:`triple-quoted strings "
"<strings>`, or parentheses and :ref:`string literal concatenation <string-"
"concatenation>`."
msgstr ""
msgid "As in Standard C, up to three octal digits are accepted."
msgstr ""
msgid ""
"Octal escapes with value larger than ``0o377`` produce a :exc:"
"`DeprecationWarning`."
msgstr ""
msgid ""
"Octal escapes with value larger than ``0o377`` produce a :exc:"
"`SyntaxWarning`. In a future Python version they will be eventually a :exc:"
"`SyntaxError`."
msgstr ""
msgid "Unlike in Standard C, exactly two hex digits are required."
msgstr ""
msgid ""
"In a bytes literal, hexadecimal and octal escapes denote the byte with the "
"given value. In a string literal, these escapes denote a Unicode character "
"with the given value."
msgstr ""
msgid "Support for name aliases [#]_ has been added."
msgstr ""
msgid "Exactly four hex digits are required."
msgstr ""
msgid ""
"Any Unicode character can be encoded this way. Exactly eight hex digits are "
"required."
msgstr ""
msgid ""
"Unlike Standard C, all unrecognized escape sequences are left in the string "
"unchanged, i.e., *the backslash is left in the result*. (This behavior is "
"useful when debugging: if an escape sequence is mistyped, the resulting "
"output is more easily recognized as broken.) It is also important to note "
"that the escape sequences only recognized in string literals fall into the "
"category of unrecognized escapes for bytes literals."
msgstr ""
msgid "Unrecognized escape sequences produce a :exc:`DeprecationWarning`."
msgstr ""
msgid ""
"Unrecognized escape sequences produce a :exc:`SyntaxWarning`. In a future "
"Python version they will be eventually a :exc:`SyntaxError`."
msgstr ""
msgid ""
"Even in a raw literal, quotes can be escaped with a backslash, but the "
"backslash remains in the result; for example, ``r\"\\\"\"`` is a valid "
"string literal consisting of two characters: a backslash and a double quote; "
"``r\"\\\"`` is not a valid string literal (even a raw string cannot end in "
"an odd number of backslashes). Specifically, *a raw literal cannot end in a "
"single backslash* (since the backslash would escape the following quote "
"character). Note also that a single backslash followed by a newline is "
"interpreted as those two characters as part of the literal, *not* as a line "
"continuation."
msgstr ""
msgid "String literal concatenation"
msgstr ""
msgid ""
"Multiple adjacent string or bytes literals (delimited by whitespace), "
"possibly using different quoting conventions, are allowed, and their meaning "
"is the same as their concatenation. Thus, ``\"hello\" 'world'`` is "
"equivalent to ``\"helloworld\"``. This feature can be used to reduce the "
"number of backslashes needed, to split long strings conveniently across long "
"lines, or even to add comments to parts of strings, for example::"
msgstr ""
msgid ""
"re.compile(\"[A-Za-z_]\" # letter or underscore\n"
" \"[A-Za-z0-9_]*\" # letter, digit or underscore\n"
" )"
msgstr ""
msgid ""
"Note that this feature is defined at the syntactical level, but implemented "
"at compile time. The '+' operator must be used to concatenate string "
"expressions at run time. Also note that literal concatenation can use "
"different quoting styles for each component (even mixing raw strings and "
"triple quoted strings), and formatted string literals may be concatenated "
"with plain string literals."
msgstr ""
msgid "f-strings"
msgstr ""
msgid ""
"A :dfn:`formatted string literal` or :dfn:`f-string` is a string literal "
"that is prefixed with ``'f'`` or ``'F'``. These strings may contain "
"replacement fields, which are expressions delimited by curly braces ``{}``. "
"While other string literals always have a constant value, formatted strings "
"are really expressions evaluated at run time."
msgstr ""
msgid ""
"Escape sequences are decoded like in ordinary string literals (except when a "
"literal is also marked as a raw string). After decoding, the grammar for "
"the contents of the string is:"
msgstr ""
msgid ""
"The parts of the string outside curly braces are treated literally, except "
"that any doubled curly braces ``'{{'`` or ``'}}'`` are replaced with the "
"corresponding single curly brace. A single opening curly bracket ``'{'`` "
"marks a replacement field, which starts with a Python expression. To display "
"both the expression text and its value after evaluation, (useful in "
"debugging), an equal sign ``'='`` may be added after the expression. A "
"conversion field, introduced by an exclamation point ``'!'`` may follow. A "
"format specifier may also be appended, introduced by a colon ``':'``. A "
"replacement field ends with a closing curly bracket ``'}'``."
msgstr ""
msgid ""
"Expressions in formatted string literals are treated like regular Python "
"expressions surrounded by parentheses, with a few exceptions. An empty "
"expression is not allowed, and both :keyword:`lambda` and assignment "
"expressions ``:=`` must be surrounded by explicit parentheses. Each "
"expression is evaluated in the context where the formatted string literal "
"appears, in order from left to right. Replacement expressions can contain "
"newlines in both single-quoted and triple-quoted f-strings and they can "
"contain comments. Everything that comes after a ``#`` inside a replacement "
"field is a comment (even closing braces and quotes). In that case, "
"replacement fields must be closed in a different line."
msgstr ""
msgid ""
">>> f\"abc{a # This is a comment }\"\n"
"... + 3}\"\n"
"'abc5'"
msgstr ""
">>> f\"abc{a # This is a comment }\"\n"
"... + 3}\"\n"
"'abc5'"
msgid ""
"Prior to Python 3.7, an :keyword:`await` expression and comprehensions "
"containing an :keyword:`async for` clause were illegal in the expressions in "
"formatted string literals due to a problem with the implementation."
msgstr ""
msgid ""
"Prior to Python 3.12, comments were not allowed inside f-string replacement "
"fields."
msgstr ""
msgid ""
"When the equal sign ``'='`` is provided, the output will have the expression "
"text, the ``'='`` and the evaluated value. Spaces after the opening brace "
"``'{'``, within the expression and after the ``'='`` are all retained in the "
"output. By default, the ``'='`` causes the :func:`repr` of the expression to "
"be provided, unless there is a format specified. When a format is specified "
"it defaults to the :func:`str` of the expression unless a conversion ``'!"
"r'`` is declared."
msgstr ""
msgid "The equal sign ``'='``."
msgstr ""
msgid ""
"If a conversion is specified, the result of evaluating the expression is "
"converted before formatting. Conversion ``'!s'`` calls :func:`str` on the "
"result, ``'!r'`` calls :func:`repr`, and ``'!a'`` calls :func:`ascii`."
msgstr ""
msgid ""
"The result is then formatted using the :func:`format` protocol. The format "
"specifier is passed to the :meth:`~object.__format__` method of the "
"expression or conversion result. An empty string is passed when the format "
"specifier is omitted. The formatted result is then included in the final "
"value of the whole string."
msgstr ""
msgid ""
"Top-level format specifiers may include nested replacement fields. These "
"nested fields may include their own conversion fields and :ref:`format "
"specifiers <formatspec>`, but may not include more deeply nested replacement "
"fields. The :ref:`format specifier mini-language <formatspec>` is the same "
"as that used by the :meth:`str.format` method."
msgstr ""
msgid ""
"Formatted string literals may be concatenated, but replacement fields cannot "
"be split across literals."
msgstr ""
msgid "Some examples of formatted string literals::"
msgstr ""
msgid ""
">>> name = \"Fred\"\n"
">>> f\"He said his name is {name!r}.\"\n"
"\"He said his name is 'Fred'.\"\n"
">>> f\"He said his name is {repr(name)}.\" # repr() is equivalent to !r\n"
"\"He said his name is 'Fred'.\"\n"
">>> width = 10\n"
">>> precision = 4\n"
">>> value = decimal.Decimal(\"12.34567\")\n"
">>> f\"result: {value:{width}.{precision}}\" # nested fields\n"
"'result: 12.35'\n"
">>> today = datetime(year=2017, month=1, day=27)\n"
">>> f\"{today:%B %d, %Y}\" # using date format specifier\n"
"'January 27, 2017'\n"
">>> f\"{today=:%B %d, %Y}\" # using date format specifier and debugging\n"
"'today=January 27, 2017'\n"
">>> number = 1024\n"
">>> f\"{number:#0x}\" # using integer format specifier\n"
"'0x400'\n"
">>> foo = \"bar\"\n"
">>> f\"{ foo = }\" # preserves whitespace\n"
"\" foo = 'bar'\"\n"
">>> line = \"The mill's closed\"\n"
">>> f\"{line = }\"\n"
"'line = \"The mill\\'s closed\"'\n"
">>> f\"{line = :20}\"\n"
"\"line = The mill's closed \"\n"
">>> f\"{line = !r:20}\"\n"
"'line = \"The mill\\'s closed\" '"
msgstr ""
msgid ""
"Reusing the outer f-string quoting type inside a replacement field is "
"permitted::"
msgstr ""
msgid ""
">>> a = dict(x=2)\n"
">>> f\"abc {a[\"x\"]} def\"\n"
"'abc 2 def'"
msgstr ""
">>> a = dict(x=2)\n"
">>> f\"abc {a[\"x\"]} def\"\n"
"'abc 2 def'"
msgid ""
"Prior to Python 3.12, reuse of the same quoting type of the outer f-string "
"inside a replacement field was not possible."
msgstr ""
msgid ""
"Backslashes are also allowed in replacement fields and are evaluated the "
"same way as in any other context::"
msgstr ""
msgid ""
">>> a = [\"a\", \"b\", \"c\"]\n"
">>> print(f\"List a contains:\\n{\"\\n\".join(a)}\")\n"
"List a contains:\n"
"a\n"
"b\n"
"c"
msgstr ""
msgid ""
"Prior to Python 3.12, backslashes were not permitted inside an f-string "
"replacement field."
msgstr ""
msgid ""
"Formatted string literals cannot be used as docstrings, even if they do not "
"include expressions."
msgstr ""
msgid ""
">>> def foo():\n"
"... f\"Not a docstring\"\n"
"...\n"
">>> foo.__doc__ is None\n"
"True"
msgstr ""
">>> def foo():\n"
"... f\"Not a docstring\"\n"
"...\n"
">>> foo.__doc__ is None\n"