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Commit5c87206

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Deploy preview for PR 1148 🛫
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‎pr-preview/pr-1148/_sources/library/csv.rst.txt‎

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@@ -113,7 +113,7 @@ The :mod:`csv` module defines the following functions:
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spamwriter.writerow(['Spam', 'Lovely Spam', 'Wonderful Spam'])
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..function::register_dialect(name[,dialect[, **fmtparams]])
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..function::register_dialect(name, /,dialect='excel', **fmtparams)
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Associate *dialect* with *name*. *name* must be a string. The
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dialect can be specified either by passing a sub-class of:class:`Dialect`, or
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Return the names of all registered dialects.
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..function::field_size_limit([new_limit])
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..function::field_size_limit()
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field_size_limit(new_limit)
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Returns the current maximum field size allowed by the parser. If *new_limit* is
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given, this becomes the new limit.
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read CSV files (assuming they support complex numbers at all).
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..method::csvwriter.writerow(row)
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..method::csvwriter.writerow(row, /)
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Write the *row* parameter to the writer's file object, formatted according
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to the current:class:`Dialect`. Return the return value of the call to the
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..versionchanged::3.5
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Added support of arbitrary iterables.
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..method::csvwriter.writerows(rows)
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..method::csvwriter.writerows(rows, /)
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Write all elements in *rows* (an iterable of *row* objects as described
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above) to the writer's file object, formatted according to the current

‎pr-preview/pr-1148/_sources/library/subprocess.rst.txt‎

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@@ -649,7 +649,7 @@ functions.
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If specified, *env* must provide any variables required for the program to
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execute. On Windows, in order to run a `side-by-side assembly`_ the
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specified *env* **must** include a valid:envvar:`SystemRoot`.
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specified *env* **must** include a valid``%SystemRoot%``.
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.. _side-by-side assembly:https://en.wikipedia.org/wiki/Side-by-Side_Assembly
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Return ``(exitcode, output)`` of executing *cmd* in a shell.
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Execute the string *cmd* in a shell with:meth:`Popen.check_output` and
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Execute the string *cmd* in a shell with:func:`check_output` and
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return a 2-tuple ``(exitcode, output)``.
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*encoding* and *errors* are used to decode output;
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see the notes on:ref:`frequently-used-arguments` for more details.

‎pr-preview/pr-1148/_sources/reference/lexical_analysis.rst.txt‎

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A Python program is read by a *parser*. Input to the parser is a stream of
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:term:`tokens <token>`, generated by the *lexical analyzer* (also known as
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the *tokenizer*).
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This chapter describes how the lexical analyzerbreaks a file into tokens.
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This chapter describes how the lexical analyzerproduces these tokens.
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Python reads program text as Unicode code points; the encoding of a source file
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can be given by an encoding declaration and defaults to UTF-8, see:pep:`3120`
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for details. If the source file cannot be decoded, a:exc:`SyntaxError` is
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raised.
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The lexical analyzer determines the program text's:ref:`encoding<encodings>`
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(UTF-8 by default), and decodes the text into
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:ref:`source characters<lexical-source-character>`.
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If the text cannot be decoded, a:exc:`SyntaxError` is raised.
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Next, the lexical analyzer uses the source characters to generate a stream of tokens.
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The type of a generated token generally depends on the next source character to
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be processed. Similarly, other special behavior of the analyzer depends on
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the first source character that hasn't yet been processed.
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The following table gives a quick summary of these source characters,
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with links to sections that contain more information.
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..list-table::
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:header-rows: 1
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* - Character
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- Next token (or other relevant documentation)
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* - * space
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* tab
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* formfeed
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- *:ref:`Whitespace<whitespace>`
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* - * CR, LF
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- *:ref:`New line<line-structure>`
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*:ref:`Indentation<indentation>`
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* - * backslash (``\``)
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- *:ref:`Explicit line joining<explicit-joining>`
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* (Also significant in:ref:`string escape sequences<escape-sequences>`)
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* - * hash (``#``)
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- *:ref:`Comment<comments>`
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* - * quote (``'``, ``"``)
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- *:ref:`String literal<strings>`
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* - * ASCII letter (``a``-``z``, ``A``-``Z``)
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* non-ASCII character
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- *:ref:`Name<identifiers>`
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* Prefixed:ref:`string or bytes literal<strings>`
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* - * underscore (``_``)
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- *:ref:`Name<identifiers>`
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* (Can also be part of:ref:`numeric literals<numbers>`)
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* - * number (``0``-``9``)
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- *:ref:`Numeric literal<numbers>`
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* - * dot (``.``)
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- *:ref:`Numeric literal<numbers>`
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*:ref:`Operator<operators>`
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* - * question mark (``?``)
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* dollar (``$``)
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*
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.. (the following uses zero-width space characters to render
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.. a literal backquote)
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backquote (``​`​``)
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* control character
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- * Error (outside string literals and comments)
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* - * other printing character
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- *:ref:`Operator or delimiter<operators>`
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* - * end of file
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- *:ref:`End marker<endmarker-token>`
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.. _line-structure:
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encoding is used for all lexical analysis, including string literals, comments
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and identifiers.
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.. _lexical-source-character:
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All lexical analysis, including string literals, comments
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and identifiers, works on Unicode text decoded using the source encoding.
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Any Unicode code point, except the NUL control character, can appear in

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