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问题 I am trying to run dash through Jupiter notebook on macOS. It does get imported and when I try to run app.run_server command it fails. it gives me the following error Errno 8] nodename nor servname provided, or not known Please adviseenter image description here and have a look at the screenshot uploaded. 回答1: Just specify the explicit host name in the app.py Default hostname causes such issue if __name__ == '__main__': app.server.run(port=8000, host='127.0.0.1') 来源： https://stackoverflow.com

问题 I am trying to run dash through Jupiter notebook on macOS. It does get imported and when I try to run app.run_server command it fails. it gives me the following error Errno 8] nodename nor servname provided, or not known Please adviseenter image description here and have a look at the screenshot uploaded. 回答1: Just specify the explicit host name in the app.py Default hostname causes such issue if __name__ == '__main__': app.server.run(port=8000, host='127.0.0.1') 来源： https://stackoverflow.com

问题 I've following type of strings, abc - xyz abc - pqr - xyz abc - - xyz abc - pqr uvw - xyz I want to retrieve the text xyz from 1st string and pqr from 2nd string, `` (empty) from 3rd & pqr uvw . The 2nd hyphen is optional. abc is static string, it has to be there. I've tried following regex, /^(?:abc) - (.*)[^ -]?/ But it gives me following output, xyz pqr - xyz - xyz pqr uvw - xyz I don't need the last part in the second string. I'm using perl for scripting. Can it be done via regex? 回答1:

问题 Morning, I'm working on a Project using Python3, Flask and Dash. I'm visualizing a CSV Table using the DataTable() from dash_table and want to highlight some specific cells. Accordistrong textng the documentation of table styling, this can be done by using the style_data_conditional attribute inside of the DataTable definition. [ https://dash.plot.ly/datatable/style ] My CSV table looks like this: testclient, 0.40, 0.48, False, False, False, 0.14, True, True, 0.0, 2 raspberrypi, 0.20, 0.21,

问题 Morning, I'm working on a Project using Python3, Flask and Dash. I'm visualizing a CSV Table using the DataTable() from dash_table and want to highlight some specific cells. Accordistrong textng the documentation of table styling, this can be done by using the style_data_conditional attribute inside of the DataTable definition. [ https://dash.plot.ly/datatable/style ] My CSV table looks like this: testclient, 0.40, 0.48, False, False, False, 0.14, True, True, 0.0, 2 raspberrypi, 0.20, 0.21,

问题 How do I import a package named "poof-support" . No, I can't change the package name, I'm getting an: error '.' expected . The line giving the error is: import poof-support.exception ; 回答1: You can't have - in your package name. So you will need to change the name. Some Package Naming Conventions from java Documentation Package names are written in all lower case to avoid conflict with the names of classes or interfaces. In some cases, the internet domain name may not be a valid package name.

问题 How do I import a package named "poof-support" . No, I can't change the package name, I'm getting an: error '.' expected . The line giving the error is: import poof-support.exception ; 回答1: You can't have - in your package name. So you will need to change the name. Some Package Naming Conventions from java Documentation Package names are written in all lower case to avoid conflict with the names of classes or interfaces. In some cases, the internet domain name may not be a valid package name.

问题 I want to upload a csv file and generate a graph that outputs the data from the csv file, I am able to upload the csv and display the data using dash_table, but I am unable to get the graph to work. My error after uploading the csv file: Invalid argument figure.data passed into Graph with ID "Mygraph". Expected an array. Was supplied type object . import base64 import datetime import io import plotly.graph_objs as go import cufflinks as cf import dash from dash.dependencies import Input,

问题 I want to upload a csv file and generate a graph that outputs the data from the csv file, I am able to upload the csv and display the data using dash_table, but I am unable to get the graph to work. My error after uploading the csv file: Invalid argument figure.data passed into Graph with ID "Mygraph". Expected an array. Was supplied type object . import base64 import datetime import io import plotly.graph_objs as go import cufflinks as cf import dash from dash.dependencies import Input,

问题 if (preg_match('#\b'.$rawword.'\b#i',$body)) { This code finds whole words, but if they are a hyphen word like "ABLE-BODIED" it will find ABLE and BODIED separately. How can modify the expression to accommodate for the dash? 回答1: You can use lookbehind and lookahead operators. This operators looks in behind and after but not match them. for example use \b(?<!-)xyz(?!-)\b for finding whole words of xyz that doesn't have - before or after. 来源： https://stackoverflow.com/questions/5781451/how-to