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Posted to reviews@spark.apache.org by HyukjinKwon <gi...@git.apache.org> on 2016/05/02 06:05:27 UTC
[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
GitHub user HyukjinKwon opened a pull request:
https://github.com/apache/spark/pull/12834
[SPARK-15050][SQL] Put CSV options as Python csv function parameters
## What changes were proposed in this pull request?
https://issues.apache.org/jira/browse/SPARK-15050
This PR adds function parameters for Python API for reading and writing `csv()`.
## How was this patch tested?
This was tested by `./dev/run_tests`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/HyukjinKwon/spark SPARK-15050
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12834.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #12834
----
commit 76bde14df297a3cefedc0e17bf3441e8fd8512fc
Author: hyukjinkwon <gu...@gmail.com>
Date: 2016-05-02T06:01:54Z
Put CSV options as Python csv function parameters
commit ca3289a6c227ad96364eae8ef889e7dbff1fd8eb
Author: hyukjinkwon <gu...@gmail.com>
Date: 2016-05-02T06:03:48Z
Add a dot
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216121828
**[Test build #57515 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57515/consoleFull)** for PR 12834 at commit [`fc33cea`](https://github.com/apache/spark/commit/fc33ceaf455dc77ccc4c716911274cb6874f2d28).
* This patch passes all tests.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216129617
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by rxin <gi...@git.apache.org>.
Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/12834#discussion_r61709443
--- Diff: python/pyspark/sql/readwriter.py ---
@@ -274,48 +299,57 @@ def text(self, paths):
return self._df(self._jreader.text(self._sqlContext._sc._jvm.PythonUtils.toSeq(paths)))
@since(2.0)
- def csv(self, paths):
+ def csv(self, paths, schema=None, sep=None, encoding=None, quote=None, escape=None,
+ comment=None, header=None, ignoreLeadingWhiteSpace=None, ignoreTrailingWhiteSpace=None,
+ nullValue=None, nanValue=None, positiveInf=None, negativeInf=None, dateFormat=None,
+ maxColumns=None, maxCharsPerColumn=None, mode=None):
"""Loads a CSV file and returns the result as a [[DataFrame]].
This function goes through the input once to determine the input schema. To avoid going
through the entire data once, specify the schema explicitly using [[schema]].
:param paths: string, or list of strings, for input path(s).
--- End diff --
can u rename paths to just path in this pr?
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216115455
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Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216405796
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Posted by AmplabJenkins <gi...@git.apache.org>.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by rxin <gi...@git.apache.org>.
Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/12834#discussion_r61706208
--- Diff: python/pyspark/sql/readwriter.py ---
@@ -274,48 +274,44 @@ def text(self, paths):
return self._df(self._jreader.text(self._sqlContext._sc._jvm.PythonUtils.toSeq(paths)))
@since(2.0)
- def csv(self, paths):
+ def csv(self, paths, schema=None, sep=None, encoding=None, quote=None, escape=None,
+ comment=None, header=None, ignoreLeadingWhiteSpace=None, ignoreTrailingWhiteSpace=None,
+ nullValue=None, nanValue=None, positiveInf=None, negativeInf=None, dateFormat=None,
+ maxColumns=None, maxCharsPerColumn=None, mode=None):
"""Loads a CSV file and returns the result as a [[DataFrame]].
This function goes through the input once to determine the input schema. To avoid going
through the entire data once, specify the schema explicitly using [[schema]].
:param paths: string, or list of strings, for input path(s).
+ :param schema: an optional :class:`StructType` for the input schema.
+ :param sep: sets the single character as a separator for each field and value.
--- End diff --
would be great to explain what the default values are if the options are set to None.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by rxin <gi...@git.apache.org>.
Github user rxin commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216114741
Yes let's do it also for json.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216129457
**[Test build #57521 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57521/consoleFull)** for PR 12834 at commit [`2af65c5`](https://github.com/apache/spark/commit/2af65c5e2cb1f5c4c74d65a9ce42cfd7f69ac3a9).
* This patch passes all tests.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216115392
**[Test build #57507 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57507/consoleFull)** for PR 12834 at commit [`ca3289a`](https://github.com/apache/spark/commit/ca3289a6c227ad96364eae8ef889e7dbff1fd8eb).
* This patch passes all tests.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216133480
**[Test build #57523 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57523/consoleFull)** for PR 12834 at commit [`cfd9aab`](https://github.com/apache/spark/commit/cfd9aab08e6af39a610092e5ae651e0c992b008f).
* This patch passes all tests.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by rxin <gi...@git.apache.org>.
Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/12834#discussion_r61709421
--- Diff: python/pyspark/sql/readwriter.py ---
@@ -698,28 +767,36 @@ def csv(self, path, mode=None, compression=None):
* ``ignore``: Silently ignore this operation if data already exists.
* ``error`` (default case): Throw an exception if data already exists.
+ :param sep: sets the single character as a separator for each field and value. If None is \
+ set, it uses the default value, ``,``.
+ :param quote: sets the single character used for escaping quoted values where the \
+ separator can be part of the value. If None is set, it uses the default \
+ value, ``"``.
+ :param escape: sets the single character used for escaping quotes inside an already \
+ quoted value. If None is set, it uses the default value, ``\``
+ :param header: writes the names of columns as the first line. If None is set, it uses \
+ the default value, ``false``.
+ :param nullValue: sets the string representation of a null value. If None is set, it uses \
+ the default value, empty string.
:param compression: compression codec to use when saving to file. This can be one of the
--- End diff --
can you move compression to the right place?
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by rxin <gi...@git.apache.org>.
Github user rxin commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216121350
LGTM other than the two minor comments.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by rxin <gi...@git.apache.org>.
Github user rxin commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216406938
Thanks - merging in master / branch-2.0.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216112173
cc @rxin
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by asfgit <gi...@git.apache.org>.
Github user asfgit closed the pull request at:
https://github.com/apache/spark/pull/12834
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216115453
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/12834#discussion_r61708031
--- Diff: python/pyspark/sql/readwriter.py ---
@@ -274,48 +274,44 @@ def text(self, paths):
return self._df(self._jreader.text(self._sqlContext._sc._jvm.PythonUtils.toSeq(paths)))
@since(2.0)
- def csv(self, paths):
+ def csv(self, paths, schema=None, sep=None, encoding=None, quote=None, escape=None,
+ comment=None, header=None, ignoreLeadingWhiteSpace=None, ignoreTrailingWhiteSpace=None,
+ nullValue=None, nanValue=None, positiveInf=None, negativeInf=None, dateFormat=None,
+ maxColumns=None, maxCharsPerColumn=None, mode=None):
"""Loads a CSV file and returns the result as a [[DataFrame]].
This function goes through the input once to determine the input schema. To avoid going
through the entire data once, specify the schema explicitly using [[schema]].
:param paths: string, or list of strings, for input path(s).
+ :param schema: an optional :class:`StructType` for the input schema.
+ :param sep: sets the single character as a separator for each field and value.
--- End diff --
Thanks. I just added.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216115914
**[Test build #57509 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57509/consoleFull)** for PR 12834 at commit [`a935dba`](https://github.com/apache/spark/commit/a935dba448423b61919d1813c10dac0ceafd2a47).
* This patch passes all tests.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by AmplabJenkins <gi...@git.apache.org>.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
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Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216127691
**[Test build #57523 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57523/consoleFull)** for PR 12834 at commit [`cfd9aab`](https://github.com/apache/spark/commit/cfd9aab08e6af39a610092e5ae651e0c992b008f).
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216112321
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216120446
**[Test build #57513 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57513/consoleFull)** for PR 12834 at commit [`5935875`](https://github.com/apache/spark/commit/5935875445069004d1a3258608c98306d0876b05).
* This patch passes all tests.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216118213
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216112196
(@rxin Do you want me to do this for `json()` as well?)
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216119491
**[Test build #57515 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57515/consoleFull)** for PR 12834 at commit [`fc33cea`](https://github.com/apache/spark/commit/fc33ceaf455dc77ccc4c716911274cb6874f2d28).
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216125881
**[Test build #57521 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57521/consoleFull)** for PR 12834 at commit [`2af65c5`](https://github.com/apache/spark/commit/2af65c5e2cb1f5c4c74d65a9ce42cfd7f69ac3a9).
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/12834#discussion_r61716763
--- Diff: python/pyspark/sql/readwriter.py ---
@@ -177,31 +180,35 @@ def json(self, path, schema=None):
:param path: string represents path to the JSON dataset,
or RDD of Strings storing JSON objects.
:param schema: an optional :class:`StructType` for the input schema.
+ :param primitivesAsString: infers all primitive values as a string type. If None is set, \
+ it uses the default value, ``false``.
+ :param prefersDecimal: infers all floating-point values as a decimal type. If the values \
+ do not fit in decimal, then it infers them as doubles. If None is \
+ set, it uses the default value, ``false``.
+ :param allowComments: ignores Java/C++ style comment in JSON records. If None is set, \
+ it uses the default value, ``false``.
+ :param allowUnquotedFieldNames: allows unquoted JSON field names. If None is set, \
+ it uses the default value, ``false``.
+ :param allowSingleQuotes: allows single quotes in addition to double quotes. If None is \
+ set, it uses the default value, ``true``.
+ :param allowNumericLeadingZero: allows leading zeros in numbers (e.g. 00012). If None is \
+ set, it uses the default value, ``false``.
+ :param allowBackslashEscapingAnyCharacter: allows accepting quoting of all character \
+ using backslash quoting mechanism. If None is \
+ set, it uses the default value, ``false``.
+ :param columnNameOfCorruptRecord: allows renaming the new field having malformed string \
+ created by ``PERMISSIVE`` mode. This overrides \
+ ``spark.sql.columnNameOfCorruptRecord``. If None is set, \
+ it uses the default value ``_corrupt_record``.
+ :param mode: allows a mode for dealing with corrupt records during parsing. If None is \
--- End diff --
I think I should move this option to the right pleace too. Let me push a commit more tomorrow.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216403502
**[Test build #57572 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57572/consoleFull)** for PR 12834 at commit [`1fa5fc7`](https://github.com/apache/spark/commit/1fa5fc76a4abe7cf1791a0a1a5a0044cfac32e68).
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by rxin <gi...@git.apache.org>.
Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/12834#discussion_r61706193
--- Diff: python/pyspark/sql/readwriter.py ---
@@ -274,48 +274,44 @@ def text(self, paths):
return self._df(self._jreader.text(self._sqlContext._sc._jvm.PythonUtils.toSeq(paths)))
@since(2.0)
- def csv(self, paths):
+ def csv(self, paths, schema=None, sep=None, encoding=None, quote=None, escape=None,
+ comment=None, header=None, ignoreLeadingWhiteSpace=None, ignoreTrailingWhiteSpace=None,
+ nullValue=None, nanValue=None, positiveInf=None, negativeInf=None, dateFormat=None,
+ maxColumns=None, maxCharsPerColumn=None, mode=None):
"""Loads a CSV file and returns the result as a [[DataFrame]].
This function goes through the input once to determine the input schema. To avoid going
through the entire data once, specify the schema explicitly using [[schema]].
:param paths: string, or list of strings, for input path(s).
+ :param schema: an optional :class:`StructType` for the input schema.
+ :param sep: sets the single character as a separator for each field and value.
--- End diff --
give default value ?
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216120503
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by HyukjinKwon <gi...@git.apache.org>.
Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/12834#discussion_r61745877
--- Diff: python/pyspark/sql/readwriter.py ---
@@ -258,64 +283,73 @@ def parquet(self, *paths):
@ignore_unicode_prefix
@since(1.6)
- def text(self, paths):
+ def text(self, path):
--- End diff --
I see. I should not change this like this. Let me revert this because someone might be using this by a named argument.
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Posted by AmplabJenkins <gi...@git.apache.org>.
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https://github.com/apache/spark/pull/12834#issuecomment-216115957
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV and JSON options as...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216405717
**[Test build #57572 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57572/consoleFull)** for PR 12834 at commit [`1fa5fc7`](https://github.com/apache/spark/commit/1fa5fc76a4abe7cf1791a0a1a5a0044cfac32e68).
* This patch passes all tests.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] spark pull request: [SPARK-15050][SQL] Put CSV options as Python c...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the pull request:
https://github.com/apache/spark/pull/12834#issuecomment-216113103
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