This Node Is Deprecated — This node is kept for backwards-compatibility, but the usage in new workflows is no longer recommended. The documentation below might contain more information.
Allows executing a Python script in a local Python
environment. The environment has to be configured
under File → Preferences → KNIME → Python or via flow variable, as described in the
KNIME Python Integration Installation Guide.
This node supports Python 2 and 3.
It also allows to import Jupyter notebooks as Python modules via the
knime_jupyter module that is available in the node's Python workspace.
Options
Script
Templates
Flow Variables
Popular Successors
- Image Viewer5 %
- Catch Errors (Data Ports)2 %
Python Plot2 %- Normalizer2 %
- Strings to Document2 %
- Cross Joiner2 %
- String Replacer2 %
- k-Means1 %
Cell Replacer1 %- Python Edit Variable (legacy)1 %
- GET Request1 %
- Rule Engine< 1 %
- Timer Info< 1 %
- Table to JSON< 1 %
- Container Output (Table)< 1 %
- End IF< 1 %
Excel Sheet Appender (XLS)< 1 %- Reference Row Splitter< 1 %
- Empty Table Switch< 1 %
- Generic JavaScript View (JavaScript)< 1 %
- Rank< 1 %
Python Learner< 1 %Python Snippet< 1 %Table Column to Variable< 1 %- Legacy Date&Time to Date&Time< 1 %
Variable Condition Loop End< 1 %- Missing Value Column Filter< 1 %
- Number Rounder< 1 %
- Column Expressions< 1 %
- Python Source (legacy)< 1 %
- Data to Report (BIRT)< 1 %
- Date&Time to String< 1 %
- Date&Time to legacy Date&Time< 1 %
Table Row to Variable< 1 %- Chunk Loop Start< 1 %
- Auto-Binner< 1 %
- Constant Value Column Filter< 1 %
- Unpivot< 1 %
- ROC Curve (JavaScript)< 1 %
- Linear Regression Learner< 1 %
- Line Chart (JFreeChart)< 1 %
- JPython Function (Legacy)< 1 %
Python Script (1⇒1)< 1 %Python Script (1⇒2)< 1 %- String to Date/Time (legacy)< 1 %
Variable to Table Row< 1 %- Read Images< 1 %
List Files< 1 %Loop End< 1 %- Column List Loop Start< 1 %
Merge Variables< 1 %- R View (Table)< 1 %
- Hierarchical Clustering< 1 %
Joiner< 1 %- Interactive Table (legacy)< 1 %
- Keras Network Learner< 1 %
- JSON Path< 1 %
Python Script (1⇒1)< 1 %- Python View (legacy)< 1 %
- Keras Network Executor< 1 %
- 3D Scatter Plot (Plotly)< 1 %
- Bag Of Words Creator< 1 %
- JSON to Table< 1 %
- Date&Time Difference< 1 %
Extract Date&Time Fields< 1 %- Active Branch Inverter< 1 %
- Create Bit Vector< 1 %
String To Number< 1 %- String to Number< 1 %
- Column Rename (Regex)< 1 %
Linear Correlation< 1 %- Column Filter< 1 %
- Normalizer (PMML)< 1 %
- String Splitter (Regex)< 1 %
- Box Plot (legacy)< 1 %
- Counter Generation< 1 %
- String Distances< 1 %
- Table to R< 1 %
Table Column to Variable< 1 %- Column Auto Type Cast< 1 %
- Lag Column< 1 %
Row Filter (deprecated)< 1 %- Partitioning< 1 %
Row Splitter (deprecated)< 1 %- RowID< 1 %
- DB Writer< 1 %
- DL Python Network Learner< 1 %
- Line Plot (Plotly)< 1 %
- Java Snippet (simple)< 1 %
- Container Output (JSON)< 1 %
- Columns to JSON< 1 %
Python Script (2⇒1)< 1 %- Fingerprints< 1 %
- R Snippet< 1 %
Table Row To Variable Loop Start< 1 %Image Writer (Table Column)< 1 %Database Table Selector< 1 %- Table Creator< 1 %
- Random Forest Learner< 1 %
- Pie chart (legacy)< 1 %
- DB Insert< 1 %
Excel Sheet Appender (XLS)< 1 %Excel Writer (XLS)< 1 %- String Input (legacy)< 1 %
- Image Converter< 1 %
- R Learner< 1 %
- Moving Aggregator< 1 %
CSV Writer< 1 %Database Reader< 1 %- Loop End (Column Append)< 1 %
- Regression Predictor< 1 %
- Cell Splitter< 1 %
- Column Merger< 1 %
- Denormalizer< 1 %
Column Rename< 1 %- Sorter< 1 %
- Data Explorer< 1 %
CASE Switch Variable (Start)< 1 %CASE Switch Data (End)< 1 %- DB SQL Executor< 1 %
- HeatMap (JFreeChart)< 1 %
- Histogram Chart (JFreeChart)< 1 %
- OSM Map View< 1 %
- Excel Writer< 1 %
- Value Filter (legacy)< 1 %
- Scorer (JavaScript)< 1 %
- Text Output Widget (legacy)< 1 %
- String to JSON< 1 %
- RDKit From Molecule< 1 %
Flow Variable IF Switch< 1 %- Plate Heatmap Viewer< 1 %
- Table to Image< 1 %
Generic Loop Start< 1 %Naive Bayes Learner< 1 %- Concatenate< 1 %
Column Appender< 1 %- Column Resorter< 1 %
- Equal Size Sampling< 1 %
- Reference Column Filter< 1 %
- Reference Row Filter< 1 %
- GroupBy< 1 %
- Joiner< 1 %
- String Manipulation< 1 %
- Rule-based Row Filter< 1 %
- Rule-based Row Splitter< 1 %
- Statistics< 1 %
- Extract Table Dimension< 1 %
- Table to Spark< 1 %
- Molecule Type Cast< 1 %
- SDF Writer< 1 %
- Parallel Chunk Start< 1 %
MySQL Connector< 1 %- Random Number Assigner< 1 %
- Numeric Distances< 1 %
- External Tool< 1 %
- Math Formula< 1 %
- Scatter Plot (JFreeChart)< 1 %
- Java Snippet Row Filter< 1 %
- Radar Plot Appender< 1 %
- Dictionary Filter< 1 %
- Date&Time Input (legacy)< 1 %
- Value Selection (legacy)< 1 %
- Table View (JavaScript)< 1 %
- Scatter Plot (JavaScript)< 1 %
- Table Editor (JavaScript)< 1 %
- Python Learner (legacy)< 1 %
- XGBoost Predictor< 1 %
Regex Extractor< 1 %- Window Slider< 1 %
Database Table Creator< 1 %- RProp MLP Learner< 1 %
Gradient Boosted Trees Predictor< 1 %- Random Forest Predictor< 1 %
- Numeric Binner< 1 %
- Create Byte Vector< 1 %
- Duplicate Row Filter< 1 %
- Pivot< 1 %
- Denormalizer (PMML)< 1 %
- Cronbach Alpha< 1 %
- Numeric Outliers< 1 %
- Send Email< 1 %
- Line Plot (legacy)< 1 %
- Scatter Matrix (legacy)< 1 %
Hive Loader (legacy)< 1 %- SDF Reader< 1 %
- Bar Chart (JavaScript)< 1 %
- JPython Script 1:1 (Legacy)< 1 %
Send to Power BI< 1 %- Document Grabber< 1 %
- Column Filter Configuration< 1 %
- Text Output (legacy)< 1 %
- Connected Component Analysis< 1 %
- Image to Labeling< 1 %
MongoDB Writer< 1 %- Network Viewer< 1 %
- String to Date&Time< 1 %
- Create Date&Time Range< 1 %
- RDKit Descriptor Calculation< 1 %
- Output File< 1 %
- Write Variables< 1 %
- Benchmark End< 1 %
- R Snippet (2:1)< 1 %
- Fingerprint Similarity< 1 %
- Active Learning Loop End< 1 %
- Create Collection Column< 1 %
- Byte Vector Distances< 1 %
- Upload (legacy)< 1 %
- URL to File Path< 1 %
- Catch Errors (Var Ports)< 1 %
- Try (Data Ports)< 1 %
- Create File Name (legacy)< 1 %
Table Row to Variable< 1 %Database Table Connector< 1 %File Reader< 1 %- Java Snippet< 1 %
Recursive Loop Start< 1 %- X-Partitioner< 1 %
- Naive Bayes Learner< 1 %
- PCA Apply< 1 %
- Cell Splitter By Position< 1 %
- Category to Number< 1 %
- Linear Correlation< 1 %
- Double to Integer< 1 %
- Normalizer (Apply)< 1 %
- One to Many (PMML)< 1 %
- Reference Column Resorter< 1 %
- Set Operator< 1 %
- Shuffle< 1 %
- Rank Correlation< 1 %
- Independent groups t-test< 1 %
- Extract Table Spec< 1 %
- Crosstab< 1 %
- Enrichment Plotter (legacy)< 1 %
Color Appender< 1 %- ROC Curve (legacy)< 1 %
- Parallel Chunk End< 1 %
- DB Query< 1 %
- Java Distance< 1 %
- Keras Network Writer< 1 %
- Box Plot (JavaScript)< 1 %
- Violin Plot (Plotly)< 1 %
- Tableau Writer< 1 %
Tableau Writer (TDE)< 1 %- Doc2Vec Learner (legacy)< 1 %
- Dimension Swapper< 1 %
- Parameter Optimization Loop End< 1 %
- Date&Time Shift< 1 %
- Table to HTML String< 1 %
- RDKit Interactive Table< 1 %
- RDKit Molecule Substructure Filter< 1 %
RDKit Structure Normalizer< 1 %- Time Domain Features (TDF)< 1 %
XLS Formatter (apply)< 1 %PMI Calculation< 1 %- Fingerprint From Binary String< 1 %
- Memory Use< 1 %
- Matlab Snippet< 1 %
- MolConverter< 1 %
- ARIMA Learner< 1 %
- Split Collection Column< 1 %
- Delete Files (legacy)< 1 %
- File Meta Info (legacy)< 1 %
- List Remote Files (legacy)< 1 %
- PNGs to Binary Objects< 1 %
Variable to Table Row< 1 %Database Writer< 1 %Extract Context Properties< 1 %- Numeric Scorer< 1 %
- PCA< 1 %
- Binner (Dictionary)< 1 %
- Case Converter< 1 %
- Column Aggregator< 1 %
- Column Name Extractor< 1 %
- Constant Value Column< 1 %
- Table Validator (Reference)< 1 %
- Missing Value (Apply)< 1 %
- Row Sampling< 1 %
- Column Splitter< 1 %
- Ungroup< 1 %
- IF Switch< 1 %
DB Table Creator< 1 %- Matrix Distance< 1 %
- Similarity Search< 1 %
- Stacked Area Chart (Plotly)< 1 %
- Model Loop Start< 1 %
- Java IF (Table)< 1 %
Send to Tableau Server (TDE)< 1 %- IDF< 1 %
- Stanford Tagger< 1 %
- Document Viewer< 1 %
- Weka Cluster Assigner (3.7)< 1 %
- Google Sheets Updater< 1 %
- Slider Input (legacy)< 1 %
- Heatmap (JavaScript)< 1 %
- Line Plot (JavaScript)< 1 %
- Tag Cloud (JavaScript)< 1 %
JSON Writer< 1 %- Image Properties< 1 %
- EasterEgg< 1 %
Python View< 1 %- Python Object Reader (legacy)< 1 %
Python Predictor< 1 %- PUT Request< 1 %
- Find Git Commits< 1 %
- Table Difference Checker< 1 %
- Modify Time< 1 %
- Column to XML< 1 %
XML Writer< 1 %- RDKit Generate Coords< 1 %
- RDKit Adjust Query Properties< 1 %
Drag and Drop< 1 %- Output Folder< 1 %
IF Switch (Flow Variable Value)< 1 %- Read Variables< 1 %
- Load text-based files< 1 %
- PDB Sequence Extractor< 1 %
- Number Formatter< 1 %
Open in Python< 1 %- Advanced MolConverter< 1 %
- 2D/3D Scatterplot< 1 %
- ARIMA Predictor< 1 %
- Copy/Move Files (legacy)< 1 %
- String to URI< 1 %
- URI to Port< 1 %
- URI to String< 1 %
- Breakpoint< 1 %
- Wait...< 1 %
Variable to Table Column< 1 %Variable to Table Column< 1 %- Extract Variables (Data)< 1 %
- Inject Variables (Data)< 1 %
CSV Reader< 1 %Database Delete< 1 %Database Looping< 1 %PMML Reader< 1 %Table Writer< 1 %- Feature Selection Loop Start (1:1)< 1 %
Loop End (2 ports)< 1 %Counting Loop Start< 1 %- Group Loop Start< 1 %
Recursive Loop End< 1 %Variable Loop End< 1 %- X-Aggregator< 1 %
- DBSCAN< 1 %
- Decision Tree Learner< 1 %
- Decision Tree Predictor< 1 %
K Nearest Neighbor< 1 %PCA Apply< 1 %PCA< 1 %PCA Inversion< 1 %- Logistic Regression Learner< 1 %
Scorer< 1 %- SMOTE< 1 %
- Association Rule Learner< 1 %
- SVM Learner< 1 %
Tree Ensemble Learner< 1 %Random Forest Learner< 1 %- Random Forest Learner (Regression)< 1 %
- Distance Matrix Pair Extractor< 1 %
Concatenate (Optional in)< 1 %Cell Splitter< 1 %- Column Combiner< 1 %
Number To String< 1 %- Number to String< 1 %
- String to SVG< 1 %
- Column Appender< 1 %
- Column Renamer (Dictionary)< 1 %
- Column to Grid< 1 %
- Many to One< 1 %
- One to Many< 1 %
- Domain Calculator< 1 %
- Filter Apply Row Splitter< 1 %
- Nominal Value Row Filter< 1 %
- Low Variance Filter< 1 %
- Missing Value< 1 %
- Number to String (PMML)< 1 %
- Numeric Row Splitter< 1 %
- String Manipulation (Variable)< 1 %
- Table Transposer< 1 %
- Value Counter< 1 %
- Renderer to Image< 1 %
- Rule Engine Variable< 1 %
- Ruleset Predictor< 1 %
Rank Correlation< 1 %CASE Switch Variable (End)< 1 %CASE Switch Data (Start)< 1 %- Cache< 1 %
- Create Temp Dir (legacy)< 1 %
- Histogram (legacy)< 1 %
- Interactive Histogram (legacy)< 1 %
- Lift Chart (legacy)< 1 %
- Interactive Pie chart (legacy)< 1 %
- Parallel Coordinates (legacy)< 1 %
- Scatter Plot (legacy)< 1 %
- Color Manager< 1 %
- Size Manager< 1 %
- Save Workflow< 1 %
- Amazon Personalize Upload Interactions< 1 %
- Azure Blob Store File Picker (legacy)< 1 %
Microsoft SQL Server Connector< 1 %- Oracle Connector< 1 %
- DB Connector< 1 %
DB Loader< 1 %- DB Update< 1 %
- DB Table Remover< 1 %
- DB Table Selector< 1 %
- Distance Matrix Writer< 1 %
- K Nearest Neighbor (Distance Function)< 1 %
DL Network Executor< 1 %- Keras Input Layer< 1 %
- DL Python Network Creator< 1 %
- DL Python Network Executor< 1 %
- TensorFlow 2 Network Executor< 1 %
- Histogram (JavaScript)< 1 %
- Parallel Coordinates Plot (JavaScript)< 1 %
- Scatter Plot (Plotly)< 1 %
- Sunburst Chart (JavaScript)< 1 %
- Boosting Learner Loop Start< 1 %
- PMML Predictor< 1 %
- Cell to Model< 1 %
- Cell to PMML< 1 %
- Variable Expressions< 1 %
Table to HTML< 1 %- MoSS< 1 %
- OpenBabel< 1 %
- DL4J Feedforward Learner (Classification) (legacy)< 1 %
- H2O MOJO Predictor (Autoencoder)< 1 %
- Table to H2O< 1 %
- Math Formula (Multi Column)< 1 %
- Bar Chart (JFreeChart)< 1 %
- GroupBy Bar Chart (JFreeChart)< 1 %
- Pie Chart (JFreeChart)< 1 %
- OSM Map to Image< 1 %
Excel Reader (XLS)< 1 %Excel Writer (XLS)< 1 %- External SSH Tool< 1 %
Send to Tableau Server (Hyper)< 1 %Tableau Writer (Hyper)< 1 %- Markup Tag Filter< 1 %
- String Matcher< 1 %
- Snowball Stemmer< 1 %
Strings To Document< 1 %- String to Term< 1 %
- Tags to String< 1 %
- Term to String< 1 %
- t-SNE (L. Jonsson)< 1 %
- External Tool (Labs)< 1 %
- Shapefile writer< 1 %
- Google Sheets Appender< 1 %
- File Download (legacy)< 1 %
- Range Slider Filter Definition (legacy)< 1 %
- List Box Input (legacy)< 1 %
- Interactive Range Slider Filter Widget< 1 %
- Container Input (Table)< 1 %
- Container Output (Row)< 1 %
- Average Filter< 1 %
- Gaussian Convolution< 1 %
- Image Normalizer< 1 %
- Distance Map< 1 %
- Image Resizer< 1 %
- Don't Save End< 1 %
- Smooth< 1 %
MongoDB Reader< 1 %- Object Inserter< 1 %
- Rowset Filter< 1 %
Python Script (2⇒1)< 1 %Python Edit Variable< 1 %- Python Predictor (legacy)< 1 %
Python Script (2⇒2)< 1 %- R Snippet< 1 %
- POST Request< 1 %
- Webpage Retriever< 1 %
- Duration to Number< 1 %
- String to Duration< 1 %
- Date&Time-based Row Filter< 1 %
- Extract Time Window (legacy)< 1 %
- Moving Average< 1 %
- Twitter Followers Search< 1 %
- Twitter Users< 1 %
XGBoost Tree Ensemble Learner< 1 %- String to XML< 1 %
- XPath< 1 %
Table to HTML String< 1 %- 3D Viewer< 1 %
- Table to Event Log< 1 %
- RDKit Molecule Catalog Filter< 1 %
- RDKit Fingerprint< 1 %
- RDKit To InChI< 1 %
- RDKit To Molecule< 1 %
- RDKit SMILES Headers< 1 %
Map Viewer< 1 %- Latitude/Longitude to Coordinate< 1 %
- HTTP Retriever< 1 %
- HTML Parser< 1 %
- Find Elements< 1 %
- Wait< 1 %
Views
- Standard output
- The text sent by Python to the standard output during the execution of this node.
- Error output
- The text sent by Python to the error output during the execution of this node.
Workflows
00_Python TestKNIME Hub- 00_Python TestKNIME Hub
- 00_Python TestKNIME Hub
- 00_SetupKNIME Hub
- 01 CCDC CSD Text-Numeric SearchesKNIME Hub
- Show all 246 workflows
Links
Developers
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