Repository: zeppelin Updated Branches: refs/heads/master ff4973d43 -> 230d89014
ZEPPELIN-1048: Pandas support for python interpreter ### What is this PR for? Display Pandas DataFrame using Zeppelin's Table Display system. ### What type of PR is it? Feature ### Todos * [x] fix NPE in logs on empty paragraph execution * [x] matplotlib: refactor `zeppelin_show(plt)` -> `z.show(plt)` * [x] pandas: support `z.show(df)` * [x] update docs ### What is the Jira issue? [ZEPPELIN-1048](https://issues.apache.org/jira/browse/ZEPPELIN-1048) ### How should this be tested? "Zeppelin Tutorial: Python - matplotlib basic" should work, and ```python import pandas as pd rates = pd.read_csv("bank.csv", sep=";") z.show(rates) ``` ### Screenshots (if appropriate)  ### Questions: * Does the licenses files need update? No * Is there breaking changes for older versions? No * Does this needs documentation? Yes Author: Alexander Bezzubov <[email protected]> Closes #1067 from bzz/python/pandas-support and squashes the following commits: 3b1ad36 [Alexander Bezzubov] Python: update docs to reffer new API ee6668b [Alexander Bezzubov] Python: update docs, add Pandas integration 71be418 [Alexander Bezzubov] Python: limit 1000 for table display system on DataFrame 52e787d [Alexander Bezzubov] Python: pandas DataFrame using Table display system bc91b86 [Alexander Bezzubov] Python: skip interpreting empty paragraphs a7248cd [Alexander Bezzubov] Python: draft of pandas support 15646a1 [Alexander Bezzubov] Python: refactoring to z.show() Project: http://git-wip-us.apache.org/repos/asf/zeppelin/repo Commit: http://git-wip-us.apache.org/repos/asf/zeppelin/commit/230d8901 Tree: http://git-wip-us.apache.org/repos/asf/zeppelin/tree/230d8901 Diff: http://git-wip-us.apache.org/repos/asf/zeppelin/diff/230d8901 Branch: refs/heads/master Commit: 230d890142f2346c48a32ad6b98a4598fdfce1b7 Parents: ff4973d Author: Alexander Bezzubov <[email protected]> Authored: Thu Jun 23 10:25:49 2016 +0900 Committer: Alexander Bezzubov <[email protected]> Committed: Thu Jun 23 22:22:19 2016 +0900 ---------------------------------------------------------------------- docs/interpreter/python.md | 23 +++-- notebook/2BQA35CJZ/note.json | 68 +++++++------- .../zeppelin/python/PythonInterpreter.java | 7 +- python/src/main/resources/__init__.py | 0 python/src/main/resources/bootstrap.py | 99 +++++++++++++++----- python/src/main/resources/bootstrap_input.py | 21 +++-- 6 files changed, 147 insertions(+), 71 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/zeppelin/blob/230d8901/docs/interpreter/python.md ---------------------------------------------------------------------- diff --git a/docs/interpreter/python.md b/docs/interpreter/python.md index 34134a1..822488f 100644 --- a/docs/interpreter/python.md +++ b/docs/interpreter/python.md @@ -44,7 +44,7 @@ To access the help, type **help()** ## Python modules The interpreter can use all modules already installed (with pip, easy_install...) -## Apply Zeppelin Dynamic Forms +## Use Zeppelin Dynamic Forms You can leverage [Zeppelin Dynamic Form]({{BASE_PATH}}/manual/dynamicform.html) inside your Python code. **Zeppelin Dynamic Form can only be used if py4j Python library is installed in your system. If not, you can install it with `pip install py4j`.** @@ -65,7 +65,6 @@ print("".join(z.checkbox("f3", [("o1","1"), ("o2","2")],["1"]))) - ## Zeppelin features not fully supported by the Python Interpreter * Interrupt a paragraph execution (`cancel()` method) is currently only supported in Linux and MacOs. If interpreter runs in another operating system (for instance MS Windows) , interrupt a paragraph will close the whole interpreter. A JIRA ticket ([ZEPPELIN-893](https://issues.apache.org/jira/browse/ZEPPELIN-893)) is opened to implement this feature in a next release of the interpreter. @@ -73,7 +72,7 @@ print("".join(z.checkbox("f3", [("o1","1"), ("o2","2")],["1"]))) * Code-completion is currently not implemented. ## Matplotlib integration - The python interpreter can display matplotlib graph with the function `zeppelin_show()`. + The python interpreter can display matplotlib graph with the function `z.show()`. You need to have matplotlib module installed and a XServer running to use this functionality ! ```python @@ -81,20 +80,32 @@ print("".join(z.checkbox("f3", [("o1","1"), ("o2","2")],["1"]))) import matplotlib.pyplot as plt plt.figure() (.. ..) -zeppelin_show(plt) +z.show(plt) plt.close() ``` zeppelin_show function can take optional parameters to adapt graph width and height ```python %python -zeppelin_show(plt,width='50px') -zeppelin_show(plt,height='150px') +z.show(plt, width='50px') +z.show(plt, height='150px') ``` [](/docs/interpreter/screenshots/pythonMatplotlib.png) +## Pandas integration +[Zeppelin Display System]({{BASE_PATH}}/displaysystem/basicdisplaysystem.html#table) provides simple API to visualize data in Pandas DataFrames, same as in Matplotlib. + +Example: + +```python +import pandas as pd +rates = pd.read_csv("bank.csv", sep=";") +z.show(rates) +``` + + ## Technical description For in-depth technical details on current implementation plese reffer [python/README.md](https://github.com/apache/zeppelin/blob/master/python/README.md) http://git-wip-us.apache.org/repos/asf/zeppelin/blob/230d8901/notebook/2BQA35CJZ/note.json ---------------------------------------------------------------------- diff --git a/notebook/2BQA35CJZ/note.json b/notebook/2BQA35CJZ/note.json index 2eeb40c..d9ffc9b 100644 --- a/notebook/2BQA35CJZ/note.json +++ b/notebook/2BQA35CJZ/note.json @@ -1,8 +1,8 @@ { "paragraphs": [ { - "text": "%md\n\n### Pre-requests\nnumpy, matplotlib are installed\n\n### os x\nmake sure locale is set, to avoid `ValueError: unknown locale: UTF-8`\n\n### virtualenv\nIn case you want to use virtualenv:\n - configure python interpreter property -\u003e `absolute/path/to/venv/bin/python`\n - see *Working with Matplotlib in Virtual environments* in the [Matplotlib FAQ](http://matplotlib.org/faq/virtualenv_faq.html)", - "dateUpdated": "Jun 17, 2016 2:23:28 PM", + "text": "%md\n\n### Pre-requests\nnumpy, matplotlib are installed \n\n### os x\nmake sure locale is set, to avoid `ValueError: unknown locale: UTF-8`\n\n### virtualenv\nIn case you want to use virtualenv:\n - configure python interpreter property -\u003e `absolute/path/to/venv/bin/python`\n - see *Working with Matplotlib in Virtual environments* in the [Matplotlib FAQ](http://matplotlib.org/faq/virtualenv_faq.html)", + "dateUpdated": "Jun 22, 2016 5:31:34 PM", "config": { "colWidth": 12.0, "graph": { @@ -31,14 +31,14 @@ "msg": "\u003ch3\u003ePre-requests\u003c/h3\u003e\n\u003cp\u003enumpy, matplotlib are installed\u003c/p\u003e\n\u003ch3\u003eos x\u003c/h3\u003e\n\u003cp\u003emake sure locale is set, to avoid \u003ccode\u003eValueError: unknown locale: UTF-8\u003c/code\u003e\u003c/p\u003e\n\u003ch3\u003evirtualenv\u003c/h3\u003e\n\u003cp\u003eIn case you want to use virtualenv:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003econfigure python interpreter property -\u003e \u003ccode\u003eabsolute/path/to/venv/bin/python\u003c/code\u003e\u003c/li\u003e\n\u003cli\u003esee \u003cem\u003eWorking with Matplotlib in Virtual environments\u003c/em\u003e in the \u003ca href\u003d\"http://matplotlib.org/faq/virtualenv_faq.html\"\u003eMatplotlib FAQ\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e\n" }, "dateCreated": "Jun 14, 2016 5:46:57 PM", - "dateStarted": "Jun 17, 2016 2:23:26 PM", - "dateFinished": "Jun 17, 2016 2:23:26 PM", + "dateStarted": "Jun 22, 2016 5:31:34 PM", + "dateFinished": "Jun 22, 2016 5:31:34 PM", "status": "FINISHED", "progressUpdateIntervalMs": 500 }, { "text": "%python\nimport numpy as np\nimport matplotlib.pyplot as plt", - "dateUpdated": "Jun 17, 2016 2:11:24 PM", + "dateUpdated": "Jun 22, 2016 5:31:34 PM", "config": { "colWidth": 12.0, "graph": { @@ -65,14 +65,14 @@ "msg": "" }, "dateCreated": "Jun 17, 2016 12:21:31 AM", - "dateStarted": "Jun 17, 2016 2:11:24 PM", - "dateFinished": "Jun 17, 2016 2:11:24 PM", + "dateStarted": "Jun 22, 2016 5:31:34 PM", + "dateFinished": "Jun 22, 2016 5:31:35 PM", "status": "FINISHED", "progressUpdateIntervalMs": 500 }, { "text": "%python\ndef f(x):\n return np.cos(1/x)\n\nx \u003d np.linspace(-2, 2, 1000)", - "dateUpdated": "Jun 17, 2016 2:29:52 PM", + "dateUpdated": "Jun 22, 2016 5:31:34 PM", "config": { "colWidth": 12.0, "graph": { @@ -101,14 +101,14 @@ "msg": "" }, "dateCreated": "Jun 14, 2016 5:44:21 PM", - "dateStarted": "Jun 17, 2016 2:29:52 PM", - "dateFinished": "Jun 17, 2016 2:29:52 PM", + "dateStarted": "Jun 22, 2016 5:31:35 PM", + "dateFinished": "Jun 22, 2016 5:31:35 PM", "status": "FINISHED", "progressUpdateIntervalMs": 500 }, { - "text": "%python\n\nplt.figure()\nplt.plot(x, f(x), lw\u003d2)\nzeppelin_show(plt, width\u003d\u0027500px\u0027)\nplt.close()", - "dateUpdated": "Jun 17, 2016 2:30:03 PM", + "text": "%python\n\nplt.figure()\nplt.plot(x, f(x), lw\u003d2)\nz.show(plt, width\u003d\u0027500px\u0027)\nplt.close()", + "dateUpdated": "Jun 22, 2016 5:31:34 PM", "config": { 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33.984375 37.640625 27.21875 \n\rQ 31.109375 20.453125 19.1875 8.296875 \n\r\" id\u003d\"BitstreamVeraSans-Roman-32\"/\u003e\n\r \u003cpath d\u003d\"M 31.78125 66.40625 \n\rQ 24.1718 75 66.40625 20.328125 58.90625 \n\rQ 16.5 51.421875 16.5 36.375 \n\rQ 16.5 21.390625 20.328125 13.890625 \n\rQ 24.171875 6.390625 31.78125 6.390625 \n\rQ 39.453125 6.390625 43.28125 13.890625 \n\rQ 47.125 21.390625 47.125 36.375 \n\rQ 47.125 51.421875 43.28125 58.90625 \n\rQ 39.453125 66.40625 31.78125 66.40625 \n\rM 31.78125 74.21875 \n\rQ 44.046875 74.21875 50.515625 64.515625 \n\rQ 56.984375 54.828125 56.984375 36.375 \n\rQ 56.984375 17.96875 50.515625 8.265625 \n\rQ 44.046875 -1.421875 31.78125 -1.421875 \n\rQ 19.53125 -1.421875 13.0625 8.265625 \n\rQ 6.59375 17.96875 6.59375 36.375 \n\rQ 6.59375 54.828125 13.0625 64.515625 \n\rQ 19.53125 74.21875 31.78125 74.21875 \n\r\" id\u003d\"BitstreamVeraSans-Roman-30\"/\u003e\n\r \u003cpath d\u003d\"M 10.6875 12.40625 \n\rL 21 12.40625 \n\rL 21 0 \n\rL 10.6875 0 \n\rz\n\r\" id\u003d\"BitstreamVeraSans-Roman-2e\"/\u003e\n\r \u003c/defs\u003e\n\r \u003cg transform\u003d\"translate(57.4303125 401.918125)scale(0.12 -0.12)\"\u 003e\n\r \u003cuse xlink:href\u003d\"#BitstreamVeraSans-Roman-2212\"/\u003e\n\r \u003cuse x\u003d\"83.7890625\" xlink:href\u003d\"#BitstreamVeraSans-Roman-32\"/\u003e\n\r \u003cuse x\u003d\"147.412109375\" xlink:href\u003d\"#BitstreamVeraSans-Roman-2e\"/\u003e\n\r \u003cuse x\u003d\"179.19921875\" xlink:href\u003d\"#BitstreamVeraSans-Roman-30\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"xtick_2\"\u003e\n\r \u003cg id\u003d\"line2d_4\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"127.8\" xlink:href\u003d\"#m31afe6147a\" y\u003d\"388.8\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"line2d_5\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"127.8\" xlink:href\u003d\"#m7618f5d89a\" y\u003d\"43.2\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\ n\r \u003cg id\u003d\"text_2\"\u003e\n\r \u003c!-- â1.5 --\u003e\n\r \u003cdefs\u003e\n\r \u003cpath d\u003d\"M 12.40625 8.296875 \n\rL 28.515625 8.296875 \n\rL 28.515625 63.921875 \n\rL 10.984375 60.40625 \n\rL 10.984375 69.390625 \n\rL 28.421875 72.90625 \n\rL 38.28125 72.90625 \n\rL 38.28125 8.296875 \n\rL 54.390625 8.296875 \n\rL 54.390625 0 \n\rL 12.40625 0 \n\rz\n\r\" id\u003d\"BitstreamVeraSans-Roman-31\"/\u003e\n\r \u003cpath d\u003d\"M 10.796875 72.90625 \n\rL 49.515625 72.90625 \n\rL 49.515625 64.59375 \n\rL 19.828125 64.59375 \n\rL 19.828125 46.734375 \n\rQ 21.96875 47.46875 24.109375 47.828125 \n\rQ 26.265625 48.1875 28.421875 48.1875 \n\rQ 40.625 48.1875 47.75 41.5 \n\rQ 54.890625 34.8125 54.890625 23.390625 \n\rQ 54.890625 11.625 47.5625 5.09375 \n\rQ 40.234375 -1.421875 26.90625 -1.421875 \n\rQ 22.3125 -1.421875 17.546875 -0.640625 \n\rQ 12.796875 0.140625 7.71875 1.703125 \n\rL 7.71875 11.625 \n\rQ 12.109375 9.234375 16.796875 8.0625 \n\rQ 21.484375 6.890625 26.703125 6.890625 \n\rQ 35.15625 6.890625 40.078125 11.328125 \n\rQ 45.015625 15.765625 45.015625 23.390625 \n\rQ 45.015625 31 40.078125 35.4375 \n\rQ 35.15625 39.890625 26.703125 39.890625 \n\rQ 22.75 39.890625 18.8125 39.015625 \n\rQ 14.890625 38.140625 10.796875 36.28125 \n\rz\n\r\" id\u003d\"BitstreamVeraSans-Roman-35\"/\u003e\n\r \u003c/defs\u003e\n\r \u003cg transform\u003d\"translate(113.2303125 401.918125)scale(0.12 -0.12)\"\u003e\n\r \u003cuse xlink:href\u003d\"#BitstreamVeraSans-Roman-2212\"/\u003e\n\r \u003cuse x\u003d\"83.7890625\" xlink:href\u003d\"#BitstreamVeraSans-Roman-31\"/\u003e\n\r \u003cuse x\u003d\"147.412109375\" xlink:href\u003d\"#BitstreamVeraSans-Roman-2e\"/\u003e\n\r \u003cuse x\u003d\"179.19921875\" xlink:href\u003d\"#BitstreamVeraSans-Roman-35\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"xtick_3\"\u003e\n\r \u003cg id\u003d\"line2d_6\"\u00 3e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"183.6\" xlink:href\u003d\"#m31afe6147a\" y\u003d\"388.8\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"line2d_7\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"183.6\" xlink:href\u003d\"#m7618f5d89a\" y\u003d\"43.2\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"text_3\"\u003e\n\r \u003c!-- â1.0 --\u003e\n\r \u003cg transform\u003d\"translate(169.0303125 401.918125)scale(0.12 -0.12)\"\u003e\n\r \u003cuse xlink:href\u003d\"#BitstreamVeraSans-Roman-2212\"/\u003e\n\r \u003cuse x\u003d\"83.7890625\" xlink:href\u003d\"#BitstreamVeraSans-Roman-31\"/\u003e\n\r \u003cuse x\u003d\"147.412109375\" xlink:href\u003d\"#BitstreamVeraSans-Roman-2e\"/\u003e\n\r \u003cuse x\u003d\"179.19921875\" xlink:href\u003d\"#BitstreamVeraSans-Roma n-30\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r 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id\u003d\"line2d_17\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"462.6\" xlink:href\u003d\"#m5ced6e031b\" y\u003d\"43.2\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"text_8\"\u003e\n\r \u003c!-- 1.5 --\u003e\n\r \u003cg transform\u003d\"translate(453.058125 401.918125)scale(0.12 -0.12)\"\u003e\n\r \u003cuse xlink:href\u003d\"#BitstreamVeraSans-Roman-31\"/\u003e\n\r \u003cuse x\u003d\"63.623046875\" xlink:href\u003d\"#BitstreamVeraSans-Roman-2e\"/\u003e\n\r \u003cuse x\u003d\"95.41015625\" xlink:href\u003d\"#BitstreamVeraSans-Roman-35\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"xtick_9\"\u003e\n\r \u003cg id\u003d\"line2d_18\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"518.4\" xlink:href\u003d\"#m1b33711152\" y\u003d\"388.8\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"line2d_19\"\u003e\n\r 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style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"72.0 \" xlink:href\u003d\"#m3c39fe74d7\" y\u003d\"388.8\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"line2d_21\"\u003e\n\r \u003cdefs\u003e\n\r \u003cpath d\u003d\"M 0 0 \n\rL -4 0 \n\r\" id\u003d\"m4564b9459b\" style\u003d\"stroke:#000000;stroke-width:0.5;\"/\u003e\n\r \u003c/defs\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"518.4\" xlink:href\u003d\"#m4564b9459b\" y\u003d\"388.8\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"text_10\"\u003e\n\r \u003c!-- â1.0 --\u003e\n\r \u003cg transform\u003d\"translate(38.860625 392.11125)scale(0.12 -0.12)\"\u003e\n\r \u003cuse xlink:href\u003d\"#BitstreamVeraSans-Roman-2212\"/\u003e\n\r \u003cuse x\u003d\"83.7890625\" xlink:href\u003d\"#BitstreamVeraSans-Roman-31\"/\u003e\n\r \u003cuse x\u003d\"147.412109375\" xlink:href\u003d\"#BitstreamVeraSans-Roman-2e\"/\u003e\n\r \u003cuse x\u003d\"179.19921875\" xlink:href\u003d\"#BitstreamVeraSans-Roman-30\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"ytick_2\"\u003e\n\r \u003cg id\u003d\"line2d_22\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"72.0\" xlink:href\u003d\"#m3c39fe74d7\" y\u003d\"302.4\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"line2d_23\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"518.4\" xlink:href\u003d\"#m4564b9459b\" y\u003d\"302.4\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"text_11\"\u003e\n\r \u003c!-- â0.5 --\u003e\n\r \u003cg transform\u003d\"translate(38.860625 305.71125)scale(0.12 -0.12)\"\u003e\n\r \u003cuse xlink:href\u003d\"#BitstreamVeraSans-Roman-2212\"/\u003e\n\r \u003cuse x\u003d\"83.7890625\ " xlink:href\u003d\"#BitstreamVeraSans-Roman-30\"/\u003e\n\r \u003cuse x\u003d\"147.412109375\" xlink:href\u003d\"#BitstreamVeraSans-Roman-2e\"/\u003e\n\r \u003cuse x\u003d\"179.19921875\" xlink:href\u003d\"#BitstreamVeraSans-Roman-35\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"ytick_3\"\u003e\n\r \u003cg id\u003d\"line2d_24\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"72.0\" xlink:href\u003d\"#m3c39fe74d7\" y\u003d\"216.0\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"line2d_25\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"518.4\" xlink:href\u003d\"#m4564b9459b\" y\u003d\"216.0\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"text_12\"\u003e\n\r \u003c!-- 0.0 --\u003e\n\r \u003cg transform\u003d\"translate(48 .91625 219.31125)scale(0.12 -0.12)\"\u003e\n\r \u003cuse xlink:href\u003d\"#BitstreamVeraSans-Roman-30\"/\u003e\n\r \u003cuse x\u003d\"63.623046875\" xlink:href\u003d\"#BitstreamVeraSans-Roman-2e\"/\u003e\n\r \u003cuse x\u003d\"95.41015625\" xlink:href\u003d\"#BitstreamVeraSans-Roman-30\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"ytick_4\"\u003e\n\r \u003cg id\u003d\"line2d_26\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"72.0\" xlink:href\u003d\"#m3c39fe74d7\" y\u003d\"129.6\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"line2d_27\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"518.4\" xlink:href\u003d\"#m4564b9459b\" y\u003d\"129.6\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"text_13\"\u003e\n\r \u003c!-- 0.5 --\u003e\n\r \u003cg transform\u003d\"translate(48.91625 132.91125)scale(0.12 -0.12)\"\u003e\n\r \u003cuse xlink:href\u003d\"#BitstreamVeraSans-Roman-30\"/\u003e\n\r \u003cuse x\u003d\"63.623046875\" xlink:href\u003d\"#BitstreamVeraSans-Roman-2e\"/\u003e\n\r \u003cuse x\u003d\"95.41015625\" xlink:href\u003d\"#BitstreamVeraSans-Roman-35\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"ytick_5\"\u003e\n\r \u003cg id\u003d\"line2d_28\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"72.0\" xlink:href\u003d\"#m3c39fe74d7\" y\u003d\"43.2\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"line2d_29\"\u003e\n\r \u003cg\u003e\n\r \u003cuse style\u003d\"stroke:#000000;stroke-width:0.5;\" x\u003d\"518.4\" xlink:href\u003d\"#m4564b9459b\" y\u003d\"43.2\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cg id\u003d\"text_14\"\u003e\n\r \u003c!-- 1.0 --\u003e\n\r \u003cg transform\u003d\"translate(48.91625 46.51125)scale(0.12 -0.12)\"\u003e\n\r \u003cuse xlink:href\u003d\"#BitstreamVeraSans-Roman-31\"/\u003e\n\r \u003cuse x\u003d\"63.623046875\" xlink:href\u003d\"#BitstreamVeraSans-Roman-2e\"/\u003e\n\r \u003cuse x\u003d\"95.41015625\" xlink:href\u003d\"#BitstreamVeraSans-Roman-30\"/\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003c/g\u003e\n\r \u003cdefs\u003e\n\r \u003cclipPath id\u003d\"p8d9001317b\"\u003e\n\r \u003crect height\u003d\"345.6\" width\u003d\"446.4\" x\u003d\"72.0\" y\u003d\"43.2\"/\u003e\n\r \u003c/clipPath\u003e\n\r \u003c/defs\u003e\n\r\u003c/svg\u003e\n\r\u003cdiv\u003e" }, "dateCreated": "Jun 16, 2016 11:49:47 PM", - "dateStarted": "Jun 17, 2016 2:30:03 PM", - "dateFinished": "Jun 17, 2016 2:30:03 PM", + "dateStarted": "Jun 22, 2016 5:31:36 PM", + "dateFinished": "Jun 22, 2016 5:31:36 PM", "status": "FINISHED", "progressUpdateIntervalMs": 500 }, { - "text": "%python\n\n#something", - "dateUpdated": "Jun 17, 2016 2:26:41 PM", + "text": "%python\n\n# something else", + "dateUpdated": "Jun 22, 2016 5:50:47 PM", "config": { "colWidth": 12.0, "graph": { "mode": "table", - "height": 300.0, + "height": 394.0, "optionOpen": false, "keys": [], "values": [], @@ -169,15 +171,15 @@ "msg": "" }, "dateCreated": "Jun 17, 2016 2:04:39 PM", - "dateStarted": "Jun 17, 2016 2:26:28 PM", - "dateFinished": "Jun 17, 2016 2:26:28 PM", + "dateStarted": "Jun 22, 2016 5:50:47 PM", + "dateFinished": "Jun 22, 2016 5:50:47 PM", "status": "FINISHED", "progressUpdateIntervalMs": 500 }, { "title": "Further help using build-in command", "text": "help()", - "dateUpdated": "Jun 17, 2016 1:58:05 PM", + "dateUpdated": "Jun 22, 2016 5:31:35 PM", "config": { "colWidth": 12.0, "graph": { @@ -203,17 +205,17 @@ "result": { "code": "SUCCESS", "type": "HTML", - "msg": "\r\u003ch2\u003ePython Interpreter help\u003c/h2\u003e\n\r\u003ch3\u003ePython 2 \u0026 3 comptability\u003c/h3\u003e\n\r\u003cp\u003eThe interpreter is compatible with Python 2 \u0026 3.\u003cbr/\u003e\n\rTo change Python version, \n\rchange in the interpreter configuration the python to the \n\rdesired version (example : python\u003d/usr/bin/python3)\u003c/p\u003e\n\r\u003ch3\u003ePython modules\u003c/h3\u003e\n\r\u003cp\u003eThe interpreter can use all modules already installed \n\r(with pip, easy_install, etc)\u003c/p\u003e\n\r\u003ch3\u003eForms\u003c/h3\u003e\n\rYou must install py4j in order to use the form feature (pip install py4j)\n\r\u003ch4\u003eInput form\u003c/h4\u003e\n\r\u003cpre\u003eprint (z.input(\"f1\",\"defaultValue\"))\u003c/pre\u003e\n\r\u003ch4\u003eSelection form\u003c/h4\u003e\n\r\u003cpre\u003eprint(z.select(\"f2\", [(\"o1\",\"1\"), (\"o2\",\"2\")],2))\u003c/pre\u003e\n\r\u003ch4\u003eCheckbox form\u003c/h4\u003e\n\r\u003cpre\u003e print(\" \".join(z.checkbox(\"f3\", [(\"o1\",\"1\"), (\"o2\",\"2\")],[\"1\"])))\u003c/pre\u003e\n\r\u003ch3\u003eMatplotlib graph\u003c/h3\u003e\n\r\u003cdiv\u003eThe interpreter can display matplotlib graph with \n\rthe function zeppelin_show()\u003c/div\u003e\n\r\u003cdiv\u003e You need to already have matplotlib module installed \n\rto use this functionality !\u003c/div\u003e\u003cbr/\u003e\n\r\u003cpre\u003eimport matplotlib.pyplot as plt\n\rplt.figure()\n\r(.. ..)\n\rzeppelin_show(plt)\n\rplt.close()\n\r\u003c/pre\u003e\n\r\u003cdiv\u003e\u003cbr/\u003e zeppelin_show function can take optional parameters \n\rto adapt graph width and height\u003c/div\u003e\n\r\u003cdiv\u003e\u003cb\u003eexample \u003c/b\u003e:\n\r\u003cpre\u003ezeppelin_show(plt,width\u003d\u002750px\u0027)\n\rzeppelin_show(plt,height\u003d\u0027150px\u0027) \u003c/pre\u003e\u003c/div\u003e" + "msg": "\r\u003ch2\u003ePython Interpreter help\u003c/h2\u003e\n\r\u003ch3\u003ePython 2 \u0026 3 comptability\u003c/h3\u003e\n\r\u003cp\u003eThe interpreter is compatible with Python 2 \u0026 3.\u003cbr/\u003e\n\rTo change Python version, \n\rchange in the interpreter configuration the python to the \n\rdesired version (example : python\u003d/usr/bin/python3)\u003c/p\u003e\n\r\u003ch3\u003ePython modules\u003c/h3\u003e\n\r\u003cp\u003eThe interpreter can use all modules already installed \n\r(with pip, easy_install, etc)\u003c/p\u003e\n\r\u003ch3\u003eForms\u003c/h3\u003e\n\rYou must install py4j in order to use the form feature (pip install py4j)\n\r\u003ch4\u003eInput form\u003c/h4\u003e\n\r\u003cpre\u003eprint (z.input(\"f1\",\"defaultValue\"))\u003c/pre\u003e\n\r\u003ch4\u003eSelection form\u003c/h4\u003e\n\r\u003cpre\u003eprint(z.select(\"f2\", [(\"o1\",\"1\"), (\"o2\",\"2\")],2))\u003c/pre\u003e\n\r\u003ch4\u003eCheckbox form\u003c/h4\u003e\n\r\u003cpre\u003e print(\" \".join(z.checkbox(\"f3\", [(\"o1\",\"1\"), (\"o2\",\"2\")],[\"1\"])))\u003c/pre\u003e\n\r\u003ch3\u003eMatplotlib graph\u003c/h3\u003e\n\r\u003cdiv\u003eThe interpreter can display matplotlib graph with \n\rthe function z.show()\u003c/div\u003e\n\r\u003cdiv\u003e You need to already have matplotlib module installed \n\rto use this functionality !\u003c/div\u003e\u003cbr/\u003e\n\r\u003cpre\u003eimport matplotlib.pyplot as plt\n\rplt.figure()\n\r(.. ..)\n\rz.show(plt)\n\rplt.close()\n\r\u003c/pre\u003e\n\r\u003cdiv\u003e\u003cbr/\u003e z.show function can take optional parameters \n\rto adapt graph width and height\u003c/div\u003e\n\r\u003cdiv\u003e\u003cb\u003eexample \u003c/b\u003e:\n\r\u003cpre\u003ez.show(plt,width\u003d\u002750px\u0027)\n\rz.show(plt,height\u003d\u0027150px\u0027) \u003c/pre\u003e\u003c/div\u003e" }, "dateCreated": "Jun 14, 2016 5:45:31 PM", - "dateStarted": "Jun 17, 2016 1:58:07 PM", - "dateFinished": "Jun 17, 2016 1:58:07 PM", + "dateStarted": "Jun 22, 2016 5:31:36 PM", + "dateFinished": "Jun 22, 2016 5:31:36 PM", "status": "FINISHED", "progressUpdateIntervalMs": 500 }, { "text": "", - "dateUpdated": "Jun 17, 2016 1:58:05 PM", + "dateUpdated": "Jun 22, 2016 5:31:35 PM", "config": { "colWidth": 12.0, "graph": { @@ -240,20 +242,20 @@ "msg": "" }, "dateCreated": "Jun 16, 2016 11:03:38 AM", - "dateStarted": "Jun 17, 2016 1:58:07 PM", - "dateFinished": "Jun 17, 2016 1:58:07 PM", + "dateStarted": "Jun 22, 2016 5:31:36 PM", + "dateFinished": "Jun 22, 2016 5:31:36 PM", "status": "FINISHED", "progressUpdateIntervalMs": 500 } ], "name": "Zeppelin Tutorial: Python - matplotlib basic", "id": "2BQA35CJZ", + "lastReplName": { + "value": "python" + }, "angularObjects": { - "2BF85N7NW:shared_process": [], - "2BGHU9722:shared_process": [], - "2BKHK8EY7:shared_process": [], - "2BF5T5XA9:shared_process": [], - "2BF44TSFC:shared_process": [] + "2BMX349MY:shared_process": [], + "2BN9WB6KT:shared_process": [] }, "config": { "looknfeel": "default" http://git-wip-us.apache.org/repos/asf/zeppelin/blob/230d8901/python/src/main/java/org/apache/zeppelin/python/PythonInterpreter.java ---------------------------------------------------------------------- diff --git a/python/src/main/java/org/apache/zeppelin/python/PythonInterpreter.java b/python/src/main/java/org/apache/zeppelin/python/PythonInterpreter.java index 9dd4ed7..08bb944 100644 --- a/python/src/main/java/org/apache/zeppelin/python/PythonInterpreter.java +++ b/python/src/main/java/org/apache/zeppelin/python/PythonInterpreter.java @@ -123,7 +123,9 @@ public class PythonInterpreter extends Interpreter { @Override public InterpreterResult interpret(String cmd, InterpreterContext contextInterpreter) { this.context = contextInterpreter; - + if (cmd == null || cmd.isEmpty()) { + return new InterpreterResult(Code.SUCCESS, ""); + } String output = sendCommandToPython(cmd); return new InterpreterResult(Code.SUCCESS, output.replaceAll(">>>", "") .replaceAll("\\.\\.\\.", "").trim()); @@ -182,12 +184,13 @@ public class PythonInterpreter extends Interpreter { private String sendCommandToPython(String cmd) { String output = ""; - logger.info("Sending : \n" + (cmd.length() > 200 ? cmd.substring(0, 120) + "..." : cmd)); + logger.info("Sending : \n" + (cmd.length() > 200 ? cmd.substring(0, 200) + "..." : cmd)); try { output = process.sendAndGetResult(cmd); } catch (IOException e) { logger.error("Error when sending commands to python process", e); } + //logger.info("Got : \n" + output); return output; } http://git-wip-us.apache.org/repos/asf/zeppelin/blob/230d8901/python/src/main/resources/__init__.py ---------------------------------------------------------------------- diff --git a/python/src/main/resources/__init__.py b/python/src/main/resources/__init__.py new file mode 100644 index 0000000..e69de29 http://git-wip-us.apache.org/repos/asf/zeppelin/blob/230d8901/python/src/main/resources/bootstrap.py ---------------------------------------------------------------------- diff --git a/python/src/main/resources/bootstrap.py b/python/src/main/resources/bootstrap.py index 04a5f53..73658b3 100644 --- a/python/src/main/resources/bootstrap.py +++ b/python/src/main/resources/bootstrap.py @@ -33,6 +33,7 @@ def intHandler(signum, frame): # Set the signal handler signal.signal(signal.SIGINT, intHandler) + def help(): print ('%html') print ('<h2>Python Interpreter help</h2>') @@ -56,47 +57,101 @@ def help(): '("o2","2")],["1"])))</pre>') print ('<h3>Matplotlib graph</h3>') print ('<div>The interpreter can display matplotlib graph with ') - print ('the function zeppelin_show()</div>') + print ('the function z.show()</div>') print ('<div> You need to already have matplotlib module installed ') print ('to use this functionality !</div><br/>') print ('''<pre>import matplotlib.pyplot as plt plt.figure() (.. ..) -zeppelin_show(plt) +z.show(plt) plt.close() </pre>''') - print ('<div><br/> zeppelin_show function can take optional parameters ') + print ('<div><br/> z.show function can take optional parameters ') print ('to adapt graph width and height</div>') print ("<div><b>example </b>:") - print('''<pre>zeppelin_show(plt,width='50px') -zeppelin_show(plt,height='150px') </pre></div>''') - -# Matplotlib show function -def zeppelin_show(p, width="0", height="0"): - img = io.StringIO() - p.savefig(img, format='svg') - img.seek(0) - style = "" - if(width != "0"): - style += 'width:'+width - if(height != "0"): - if(len(style) != 0): - style += "," - style += 'height:'+height - print("%html <div style='" + style + "'>" + img.read() + "<div>") + print ('''<pre>z.show(plt,width='50px') +z.show(plt,height='150px') </pre></div>''') + print ('<h3>Pandas DataFrame</h3>') + print """ +<div>The interpreter can visualize Pandas DataFrame +with the function z.show() +<pre> +import pandas as pd +df = pd.read_csv("bank.csv", sep=";") +z.show(df) +</pre></div> +""" -# If py4j is detected, these class will be override -# with the implementation in bootstrap_input.py -class PyZeppelinContext(): +class PyZeppelinContext(object): + """ If py4j is detected, these class will be override + with the implementation in bootstrap_input.py + """ errorMsg = "You must install py4j Python module " \ "(pip install py4j) to use Zeppelin dynamic forms features" + def __init__(self, zc): self.z = zc + self.max_result = 1000 + def input(self, name, defaultValue=""): print (self.errorMsg) + def select(self, name, options, defaultValue=""): print (self.errorMsg) + def checkbox(self, name, options, defaultChecked=[]): print (self.errorMsg) + + def show(self, p, **kwargs): + if hasattr(p, '__name__') and p.__name__ == "matplotlib.pyplot": + self.show_matplotlib(p, **kwargs) + elif type(p).__name__ == "DataFrame": # does not play well with sub-classes + # `isinstance(p, DataFrame)` would req `import pandas.core.frame.DataFrame` + # and so a dependency on pandas + self.show_dataframe(p, **kwargs) + + def show_dataframe(self, df, **kwargs): + """Pretty prints DF using Table Display System + """ + limit = len(df) > self.max_result + header_buf = io.StringIO("") + header_buf.write(df.columns[0]) + for col in df.columns[1:]: + header_buf.write("\t") + header_buf.write(col) + header_buf.write("\n") + + body_buf = io.StringIO("") + rows = df.head(self.max_result).values if limit else df.values + for row in rows: + body_buf.write(row[0]) + for cell in row[1:]: + body_buf.write("\t") + body_buf.write(cell) + body_buf.write("\n") + body_buf.seek(0); header_buf.seek(0) + #TODO(bzz): fix it, so it shows red notice, as in Spark + print("%table " + header_buf.read() + body_buf.read()) # + + # ("\n<font color=red>Results are limited by {}.</font>" \ + # .format(self.max_result) if limit else "") + #) + body_buf.close(); header_buf.close() + + def show_matplotlib(self, p, width="0", height="0", **kwargs): + """Matplotlib show function + """ + img = io.StringIO() + p.savefig(img, format='svg') + img.seek(0) + style = "" + if (width != "0"): + style += 'width:' + width + if (height != "0"): + if (len(style) != 0): + style += "," + style += 'height:' + height + print("%html <div style='" + style + "'>" + img.read() + "<div>") + img.close() + z = PyZeppelinContext("") http://git-wip-us.apache.org/repos/asf/zeppelin/blob/230d8901/python/src/main/resources/bootstrap_input.py ---------------------------------------------------------------------- diff --git a/python/src/main/resources/bootstrap_input.py b/python/src/main/resources/bootstrap_input.py index 402df7e..d15b93a 100644 --- a/python/src/main/resources/bootstrap_input.py +++ b/python/src/main/resources/bootstrap_input.py @@ -16,20 +16,24 @@ from py4j.java_gateway import JavaGateway from py4j.java_gateway import java_import, JavaGateway, GatewayClient + client = GatewayClient(port=%PORT%) gateway = JavaGateway(client) java_import(gateway.jvm, "org.apache.zeppelin.display.Input") -class PyZeppelinContext(): - paramOption = gateway.jvm.org.apache.zeppelin.display.Input.ParamOption - javaList = gateway.jvm.java.util.ArrayList +class Py4jZeppelinContext(PyZeppelinContext): + """A context impl that uses Py4j to communicate to JVM + """ def __init__(self, zc): - self.z = zc - + super(Py4jZeppelinContext, self).__init__(zc) + self.paramOption = gateway.jvm.org.apache.zeppelin.display.Input.ParamOption + self.javaList = gateway.jvm.java.util.ArrayList + self.max_result = 1000 #TODO(bzz): read `zeppelin.python.maxResult` from JVM + def input(self, name, defaultValue=""): return self.z.getGui().input(name, defaultValue) - + def select(self, name, options, defaultValue=""): javaOptions = gateway.new_array(self.paramOption, len(options)) i = 0 @@ -37,7 +41,7 @@ class PyZeppelinContext(): javaOptions[i] = self.paramOption(tuple[0], tuple[1]) i += 1 return self.z.getGui().select(name, defaultValue, javaOptions) - + def checkbox(self, name, options, defaultChecked=[]): javaOptions = gateway.new_array(self.paramOption, len(options)) i = 0 @@ -49,4 +53,5 @@ class PyZeppelinContext(): javaDefaultCheck.append(check) return self.z.getGui().checkbox(name, javaDefaultCheck, javaOptions) -z = PyZeppelinContext(gateway.entry_point) + +z = Py4jZeppelinContext(gateway.entry_point)
