id
stringlengths
15
54
text
stringlengths
3
133k
title
stringclasses
1 value
ros_yaml/yamlinpython_60.txt
script.py Copydef convert_yaml_to_json(yfile, jfile): with open(f'{yfile}.yaml', 'r') as f: yaml_file = yaml.safe_load(f) with open(f'{jfile}.json', 'w') as json_file: json.dump(yaml_file, json_file, indent=3) print('done!') convert_yaml_to_json('output','output') The json.dump() function co...
ros_yaml/rclpyparamstutorialg_132.txt
Necessary
ros_yaml/yamlinpython_43.txt
read_and_write_one_block_of_yaml_data('output', 'output3') You should have the following output:
ros_yaml/rclpyparamstutorialg_129.txt
Close
ros_yaml/rclpyparamstutorialg_149.txt
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
ros_yaml/pythonyaml_39.txt
Remove ads Practical Uses of YAML As noted earlier, YAML is mostly praised for its readability, which makes it perfect for storing all kinds of configuration data in a human-readable format. It became especially popular among DevOps engineers, who’ve built automation tools around it. A few examples of such tools includ...
ros_yaml/pythonyaml_307.txt
if isinstance(event, OPEN_TAG_EVENTS): self._handle_tag()
ros_yaml/pythonyaml_191.txt
>>> import yaml
ros_yaml/UsingParametersInACl_103.txt
ros2 launch python_parameters python_parameters_launch.py
ros_yaml/UsingParametersInACl_69.txt
Linux macOS Windows
ros_yaml/pythonyaml_345.txt
def visit(node): if isinstance(node, yaml.ScalarNode): return cast(node.value, node.tag) elif isinstance(node, yaml.SequenceNode): return html_list(node) elif isinstance(node, yaml.MappingNode): return html_map(node)
ros_yaml/pythonyaml_285.txt
>>> import yaml >>> for event in yaml.parse("[42, {pi: 3.14, e: 2.72}]", yaml.SafeLoader): ... print(event) ... StreamStartEvent() DocumentStartEvent() SequenceStartEvent(anchor=None, tag=None, implicit=True) ScalarEvent(anchor=None, tag=None, implicit=(True, False), value='42') MappingStartEvent(anchor=None, tag=N...
ros_yaml/pythonyaml_169.txt
When you decide to use the !!python/object tag in YAML, then the library calls .__new__() without any arguments and never calls .__init__(). Instead, it directly manipulates the .__dict__ attribute of your newly created object, which can have some undesired effects:
ros_yaml/UsingParametersInACl_14.txt
**Time:** 20 minutes
ros_yaml/UsingParametersInACl_86.txt
ros2 param set /minimal_param_node my_parameter earth
ros_yaml/rclpyparamstutorialg_120.txt
[ ![ROS2 For Beginners - Step by Step Course](https://roboticsbackend.com/wp- content/uploads/2020/04/ROS2_for_beginners_step_by_step.jpg) ](https://rbcknd.com/ros2-for-beginners)
ros_yaml/pythonyaml_82.txt
shape: &shape color: blue
ros_yaml/UsingParametersInACl_65.txt
rosdep install -i --from-path src --rosdistro foxy -y
ros_yaml/pythonyaml_185.txt
Here’s one way of loading your encoded state from YAML:
ros_yaml/pythonyaml_342.txt
>>> visit(yaml.compose("when: 2022-01-16 23:59:59")) {'when': datetime.datetime(2022, 1, 16, 23, 59, 59)} You’re all set to generate an HTML string instead of a Python object. Replace the return values in visit() with calls to even more helper functions:
ros_yaml/UsingParametersInACl_61.txt
Don’t forget to save.
ros_yaml/rclpyparamstutorialg_82.txt
If you just want to set a parameter’s value in case it is not specified when you start the node, then prefer using a default value (as you saw before in this tutorial).
ros_yaml/pythonyaml_122.txt
Note: Before version 6.0 of the PyYAML library, the default way of parsing YAML documents had always been the yaml.load() function, which defaulted to using an unsafe parser. With the latest release, you can still use this function, but it requires you to explicitly specify a particular loader class as a second paramet...
ros_yaml/pythonyaml_372.txt
Bartosz Zaczyński Bartosz is a bootcamp instructor, author, and polyglot programmer in love with Python. He helps his students get into software engineering by sharing over a decade of commercial experience in the IT industry.
ros_yaml/UsingParametersInACl_40.txt
<description>Python parameter tutorial</description> <maintainer email="you@email.com">Your Name</maintainer> <license>Apache License 2.0</license>
ros_yaml/pythonyaml_205.txt
>>> import yaml
ros_yaml/pythonyaml_34.txt
In Python, performance when working with these data formats will vary, and it’ll be highly sensitive to the implementation you choose. A pure Python implementation will always lose to a compiled C library. In addition to this, using different XML processing models—(DOM, SAX, or StAX)—will also impact performance.
ros_yaml/yamlinpython_7.txt
Some of the widely used data serialization languages include YAML, XML, and JSON. While XML and JSON are used for data transfer between applications, YAML is often used to define the configuration for applications.
ros_yaml/pythonyaml_216.txt
>>> data = {"name": "John"}
ros_yaml/rclpyparamstutorialg_115.txt
* [ Learn how to handle params with Cpp and rclcpp ](https://roboticsbackend.com/rclcpp-params-tutorial-get-set-ros2-params-with-cpp/) . * [ Learn how to set all your parameters in YAML config files ](https://roboticsbackend.com/ros2-yaml-params/) (very useful to scale your application properly).
ros_yaml/pythonyaml_291.txt
# ...
ros_yaml/pythonyaml_134.txt
' date: 2022-01-16 12:46:17+00:00 from: john.doe@domain.com subject: Friendly reminder to: - bobby@domain.com - molly@domain.com The result is a string object with your email message serialized to YAML again. However, it’s not quite the same YAML that you originally started with. As you can see, safe_du...
ros_yaml/pythonyaml_117.txt
On the other hand, if type safety is your main concern or you’d like to validate YAML documents against a schema, then have a look at StrictYAML, which intentionally restricts the YAML specification by disregarding its most risky features. Just keep in mind that it won’t run as quickly as the other two libraries.
ros_yaml/pythonyaml_62.txt
Note: The PyYAML library used in this tutorial is based on the older YAML 1.1 specification, which supports base-60 numbers through the colon (:) notation. This means that a literal like 59:59 gets interpreted as an integer value of 3,599 because 59 × 601 + 59 × 600 adds up to it.
ros_yaml/pythonyaml_26.txt
Common binary data serialization formats you’d find in the wild include Google’s Protocol Buffers and Apache’s Avro.
ros_yaml/pythonyaml_35.txt
Implementations aside, YAML’s versatile, liberal, and complex syntax makes it by far the slowest to parse and serialize. On the other side of the spectrum, you’ll find JSON, whose grammar can fit on a business card. In contrast, YAML’s own grammar documentation claims that creating a fully compliant parser has proven a...
ros_yaml/pythonyaml_195.txt
>>> yaml.safe_load("name: Иван".encode("utf-16")) {'name': 'Иван'}
ros_yaml/yamlinpython_72.txt
Don't Configure Control Flow 8 minute read Learn why using YAML for control flow configuration can lead to complex and hard-to-understand code, and why it's better to use existing programming language...
ros_yaml/pythonyaml_352.txt
# ...
ros_yaml/UsingParametersInACl_29.txt
## Tasks 
ros_yaml/UsingParametersInACl_27.txt
## Prerequisites 
ros_yaml/pythonyaml_371.txt
Python Tricks Dictionary Merge Email Address About Bartosz Zaczyński
rosdep_install/iamgettinganerrorimp_86.txt
from app.models import User def test_new_user(): ''' Given a User model When a new user is being logged in Check the User database columns ''' # username hashed_password emai confirmation_email reset_email_password user = User('aioh...
rosdep_install/iamgettinganerrorimp_50.txt
"""A pure Python implementation of import.""" __all__ = ['__import__', 'import_module', 'invalidate_caches', 'reload'] # Bootstrap help ##################################################### # Until bootstrapping is complete, DO NOT import any modules that attempt # to import im...
rosdep_install/12287_26.txt
fantastic! The error disappeared by following your instruction! Thank you very much for your help. ![:blush:](https://emoji.discourse- cdn.com/twitter/blush.png?v=12)
rosdep_install/iamgettinganerrorimp_175.txt
* Change width
rosdep_install/iamgettinganerrorimp_89.txt
from app.models import User def test_new_user(): ''' Given a User model When a new user is being logged in Check the User database columns ''' # username hashed_password emai confirmation_email reset_email_password user = User('aioh...
rosdep_install/367_79.txt
Copy link
rosdep_install/iamgettinganerrorimp_48.txt
Code:
rosdep_install/15447_39.txt
I solved it, in api.py I imported:
rosdep_install/iamgettinganerrorimp_118.txt
conda list:
rosdep_install/15447_32.txt
Yes, api.py and views.py are in the same directory.
rosdep_install/367_63.txt
[ ![@mitchellwills](https://avatars.githubusercontent.com/u/427009?s=80&v=4) ](/mitchellwills)
rosdep_install/367_18.txt
Repositories
rosdep_install/iamgettinganerrorimp_46.txt
================================================================================== short test summary info ================================================================================== ERROR - ValueError: source code string cannot contain null bytes ! Interrupted: 1 error during collection !
rosdep_install/iamgettinganerrorimp_96.txt
__ Gold Member
rosdep_install/367_58.txt
[ mitchellwills ](/mitchellwills) opened this issue Jan 6, 2015 · 15 comments
rosdep_install/iamgettinganerrorimp_78.txt
* Apr 20, 2022
rosdep_install/367_171.txt
> aniroodhs-mbp:ros_catkin_ws aniroodhravikumar$ which python > /opt/local/bin/python > aniroodhs-mbp:ros_catkin_ws aniroodhravikumar$ python --version > Python 2.7.14 --- All reactions
rosdep_install/367_166.txt
Sorry, something went wrong.
rosdep_install/iamgettinganerrorimp_26.txt
More options
rosdep_install/367_2.txt
[ ](https://github.com/)
rosdep_install/iamgettinganerrorimp_112.txt
I am getting the error still when I type pytest -m python . .
rosdep_install/12287_17.txt
[ KenWhitesell ](https://forum.djangoproject.com/u/KenWhitesell) February 22, 2022, 12:53pm 2
rosdep_install/iamgettinganerrorimp_133.txt
Insert quotes…
rosdep_install/367_160.txt
Copy link
rosdep_install/iamgettinganerrorimp_67.txt
Please put your code and transcripts directly in code blocks instead of linking to a pastebin. The pastebin linking destroys your code formatting, which with Python is a big problem.
rosdep_install/367_15.txt
* Open Source
rosdep_install/367_60.txt
# rosdep fails if pip is not installed #367
rosdep_install/iamgettinganerrorimp_149.txt
Replies
rosdep_install/iamgettinganerrorimp_169.txt
* [ Insights Schrödinger’s Cat and the Qbit ](/threads/schroedingers-cat-and-the-qbit.1061433/ "Schrödinger’s Cat and the Qbit")
rosdep_install/iamgettinganerrorimp_113.txt
error:
rosdep_install/367_135.txt
Copy link
rosdep_install/15447_27.txt
Have already tried it, I get the same error message
rosdep_install/367_203.txt
### Footer navigation
rosdep_install/12287_37.txt
| 2 | 1521 | November 14, 2023 [ Heroku throws ModuleNotFoundError for app that is installed ](https://forum.djangoproject.com/t/heroku-throws-modulenotfounderror-for-app- that-is-installed/24237)
rosdep_install/iamgettinganerrorimp_103.txt
92
rosdep_install/iamgettinganerrorimp_64.txt
45,604
rosdep_install/367_37.txt
[ Sign up ](/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser- name%3E%2F%3Crepo- name%3E%2Fvoltron%2Fissues_fragments%2Fissue_layout&source=header- repo&source_repo=ros-infrastructure%2Frosdep)
rosdep_install/15447_14.txt
Thank you for response
rosdep_install/367_196.txt
No milestone
rosdep_install/iamgettinganerrorimp_66.txt
> rgtr said: > > Here is the error.
rosdep_install/367_124.txt
Sorry, something went wrong.
rosdep_install/367_22.txt
# Search code, repositories, users, issues, pull requests...
rosdep_install/367_145.txt
**[ NikolausDemmel ](/NikolausDemmel) ** commented Apr 4, 2018
rosdep_install/iamgettinganerrorimp_170.txt
* [ Insights The Slinky Drop Experiment Analysed ](/threads/the-slinky-drop-experiment-analysed.1061307/ "The Slinky Drop Experiment Analysed")
rosdep_install/iamgettinganerrorimp_68.txt
* Apr 20, 2022
rosdep_install/iamgettinganerrorimp_121.txt
pyparsing 2.4.7 py_0 anaconda pytest 7.1.1 py310haa95532_0 python 3.10.4 hbb2ffb3_0 python-dateutil 2.8.1 py_0 anaconda python-editor 1.0.4 ...
rosdep_install/367_176.txt
###
rosdep_install/iamgettinganerrorimp_14.txt
* [ Chemistry ](https://www.physicsforums.com/forums/chemistry.83/)
rosdep_install/367_38.txt
You signed in with another tab or window. [ Reload ]() to refresh your session. You signed out in another tab or window. [ Reload ]() to refresh your session. You switched accounts on another tab or window. [ Reload ]() to refresh your session. Dismiss alert
rosdep_install/iamgettinganerrorimp_28.txt
Close Menu
rosdep_install/367_133.txt
Sorry, something went wrong.
rosdep_install/367_92.txt
Ok, well in the case that a ` pip ` key is needed it will assert that ` pip ` is available, that is intended behavior. If that was the case then I'll close this for now. Feel free to comment further, I can reopen the issue if something is still left to be resolved.
rosdep_install/15447_54.txt
[ Mystery Errors ](/c/users/mystery-errors/22)
rosdep_install/15447_56.txt
Powered by [ Discourse ](https://www.discourse.org) , best viewed with JavaScript enabled
rosdep_install/iamgettinganerrorimp_151.txt
Views
rosdep_install/12287_38.txt
[ Deployment ](/c/users/deployment/24)
rosdep_install/15447_4.txt
Greetings,
rosdep_install/12287_14.txt
and, “python manage runserver” also success.