jinja2

问题 How should I do a while ( x < y ) in jinja2? I've seen the jinja2 docs, it seems like they only support for loop for a declared variable of array and while() is not supported at all. 回答1: I think your closest alternative with Jinja2 would be to use a for with range : {% range number from 3 to 6 %} {{ number }} (...) {% endrange %} And you can pass the variables from your program to use them in the loop. 来源： https://stackoverflow.com/questions/13668025/how-to-do-a-while-x-y-in-jinja2

问题 I am using Jinja2 to generate HTML files which are typically very huge in size. I noticed that the generated HTML had a lot of whitespace. Is there a pure-Python tool that I can use to minimize this HTML? When I say "minimize", I mean remove unnecessary whitespace from the HTML (much like Google does -- look at the source for google.com, for instance) I don't want to rely on libraries/external-executables such as tidy for this. For further clarification, there is virtually no JavaScript code.

问题 I am using Jinja2 to generate HTML files which are typically very huge in size. I noticed that the generated HTML had a lot of whitespace. Is there a pure-Python tool that I can use to minimize this HTML? When I say "minimize", I mean remove unnecessary whitespace from the HTML (much like Google does -- look at the source for google.com, for instance) I don't want to rely on libraries/external-executables such as tidy for this. For further clarification, there is virtually no JavaScript code.

问题 I'm enabling a function that can edit an entity. I want to populate the form with the variables from the datastore. How can I do it? My code doesn't populate the form: if self.request.get('id'): id = int(self.request.get('id')) ad = Ad.get(db.Key.from_path('Ad', id)) im = ad.matched_images editAdForm = AdForm(ad) if str(users.get_current_user()) == str(ad.user) or users.is_current_user_admin(): self.render_jinja('edit', form_url=blobstore.create_upload_url('/addimage'), admin=users.is_current

问题 I am trying to set a variable in Ansible with set_fact at runtime based upon another variable. If uses first value no matter what the actual value is. Here is my code example: - name: Global_vars - get date info set_fact: jm_env: "{{lookup('env', 'Environment')}}" l_env: "{% if '{{jm_env}}==Develop' %}d{% elif '{{jm_env}}==Staging'%}s{% else %}p{% endif %}" l_env is d no matter what jm_env is set. 回答1: Firstly, dictionaries in YAML are not ordered (and the syntax used by Ansible here is a

问题 I am trying to set a variable in Ansible with set_fact at runtime based upon another variable. If uses first value no matter what the actual value is. Here is my code example: - name: Global_vars - get date info set_fact: jm_env: "{{lookup('env', 'Environment')}}" l_env: "{% if '{{jm_env}}==Develop' %}d{% elif '{{jm_env}}==Staging'%}s{% else %}p{% endif %}" l_env is d no matter what jm_env is set. 回答1: Firstly, dictionaries in YAML are not ordered (and the syntax used by Ansible here is a

问题 I'm running the micro framework Bottle on Google App Engine. I'm using Jinja2 for my templates. And I'm using Beaker to handle the sessions. I'm still a pretty big Python newbie and am pretty stoked I got this far :) My question is how do I access the session data within the templates? I can get the session data no problem within the actual python code. And I could pass the session data each time I call a jinja template. But since I need the session data in the main menu bar of the site...

问题 Using Django templating engine I can include another partial template while setting a custom context using named arguments, like this: {% include "list.html" with articles=articles_list1 only %} {% include "list.html" with articles=articles_list2 only %} As you may be supposing, articles_list1 and articles_list2 are two different lists, but I can reuse the very same list.html template which will be using the articles variable. I'm trying to achieve the same thing using Jinja2, but I can't see

问题 Using Django templating engine I can include another partial template while setting a custom context using named arguments, like this: {% include "list.html" with articles=articles_list1 only %} {% include "list.html" with articles=articles_list2 only %} As you may be supposing, articles_list1 and articles_list2 are two different lists, but I can reuse the very same list.html template which will be using the articles variable. I'm trying to achieve the same thing using Jinja2, but I can't see

问题 (UPDATE: I've made a better question with a better answer here. I was going to delete this question, but some of the answers might prove useful to future searchers.) My question is just about identical to this, but that answer is ugly (requires a dir structure including sharedtemplates/templates/templates/ ), incomplete as posted (user "answered" his own question), and assumes some knowledge I don't have. I'm working on my first python-backed web application. The javascript component is well