jinja2

问题 Is there a way to handle exceptions within a template in jinja2? {% for item in items %} {{ item|urlencode }} <-- item contains a unicode string that contains a character causes urlencode to throw KeyError {% endfor %} How do I handle that exception so that I can just skip that item or handle it without forcing the entire template rendering to fail? Thanks! 回答1: {% for item in items %} {{ item | custom_urlencode_filter }} {% endfor %} Then in whatever file you have setting up your jinja2

问题 Is there a way to handle exceptions within a template in jinja2? {% for item in items %} {{ item|urlencode }} <-- item contains a unicode string that contains a character causes urlencode to throw KeyError {% endfor %} How do I handle that exception so that I can just skip that item or handle it without forcing the entire template rendering to fail? Thanks! 回答1: {% for item in items %} {{ item | custom_urlencode_filter }} {% endfor %} Then in whatever file you have setting up your jinja2

问题 Is there a way to handle exceptions within a template in jinja2? {% for item in items %} {{ item|urlencode }} <-- item contains a unicode string that contains a character causes urlencode to throw KeyError {% endfor %} How do I handle that exception so that I can just skip that item or handle it without forcing the entire template rendering to fail? Thanks! 回答1: {% for item in items %} {{ item | custom_urlencode_filter }} {% endfor %} Then in whatever file you have setting up your jinja2

问题 Let's say I have table users with column id and fullname . In my HTML, I want to have a for loop to display the id and the result of fullname after I pass it into a function called func . I don't want to pass func into Jinja because it requires importing certain module. So, I think I need to pass fullname into func in view . My question is what is the best way to do this? Do I need to make a new table just for this to later pass it into Jinja? So far this seems like the only solution that I

问题 I am writing the below df values into a html template. I am missing chemistry and algebra column in the final output html table. import pandas as pd df = pd.DataFrame({'name': ['Somu', 'Kiku', 'Amol', 'Lini'], 'physics': [68, 74, 77, 78], 'chemistry': [84, 56, 73, 69], 'algebra': [78, 88, 82, 87]}) df_html = df.to_html() template_vars = { "html_table":df_html} f = open(output.html, 'w', encoding='utf-8') html_template ="metrics.html" temp = Template(open(html_template, 'r').read()) template =

问题 I have k:v dictionary of hostname: IP that I want to use in a lookup from another dictionary to replace entries matching key from 1st dictionary and replacing it with the corresponding value in 2nd dictionary; 1st: "nb_console_ip": { "office-con01": "10.20.30.100", 2nd: "nb_console_port": [ { "console": "office-con01", "hostname": "office-core01", "port": "con1" }, { "console": "office-con01", "hostname": "office-core02", "port": "con2" }, { "console": "office-con01", "hostname": "office-fw01

问题 Are there any way to replace html tag on WTForms? Form code: class BasicForm(Form): some_select = RadioField("something", choices=[('first', 'first_choice'), ('second', 'second_choice')]) Thanks. 回答1: Your field accepts a widget argument you can pass to override default widget(that renders your field). Docs: http://wtforms.simplecodes.com/docs/0.6/fields.html#wtforms.fields.Field 来源： https://stackoverflow.com/questions/31405666/how-can-wtforms-radiofield-generate-html-without-ul-and-li-tag

问题 I need to display some images and these image filepaths are outside of flask's static folder stored on on network folders. <img src="{{ filepath }}"> # /some/external/network/folder/img.jpg However this is not working and I get a broken image icon, however I can paste the image path into my browser and confirm its accessible. I need this application to be able to accept image sources from anywhere, so I can't update my static folder to the network folder. I also can't load the images to the

问题 I want to access variables in the jinja2 macro namespace inside a contextfunction. Say my macro looks like: {% macro show_var(a) %} {{ show_var_context_function("a") }} {% endmacro %} and my contextfunction looks like this: @contextfunction def show_var_context_function(context, var_name_string): return context[var_name_string] Now I think context should have access to a... this should be stored within the context I would think, but the above code will raise a NameError on a, saying it isn't

问题 I am trying to display data on my web app from a CSV file using Flask. The below code reads my CSV file and assigns stocklist as the variable for my data. In the HTML code below it, using jinga logic, I iterate through stocklist however my CSV columns are returned as rows (see sample output and pic). How do I display the rows correctly? My python function: @app.route('/stocks') def Stocks(): filename = 'stock_scraper - dev.csv' data = pandas.read_csv(filename, header=0) stocklist = list(data