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Understanding TypeError in Programming and Solutions

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Error & Bug Fixation

Last Post by loveboy 6 months ago

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Posts: 32

Dan Heng

Moderator

Topic starter

Mar 09, 2024 10:41 am

(@danheng)

Member

Joined: 7 months ago

Introduction to TypeError:

TypeError is a common error encountered in programming when an operation is performed on a data type that is not supported or compatible with the operation. It indicates a mismatch between the expected and actual data types involved in the operation.

Causes of TypeError:

Incorrect Data Types: Performing operations such as arithmetic or comparison with incompatible data types can result in TypeError. For example, trying to add a string to an integer or comparing a list to an integer.
Missing or Misused Arguments: Passing the wrong number of arguments or using arguments in the wrong order in a function call can lead to TypeError.
Incorrect Usage of Built-in Functions: Incorrect usage of built-in functions, such as passing arguments of the wrong data type, can trigger TypeError.
Issues with Type Conversion: Errors can occur when attempting to convert one data type to another using functions like int(), float(), str(), etc., if the conversion is not possible.
Incompatible Object Methods: Invoking methods on objects that are not designed to support those methods can result in TypeError.

Example of TypeError:

python

# Example of TypeError in Python

result = 5 + "10"

In this example, adding an integer (5) to a string ("10") results in a TypeError because addition between an integer and a string is not supported.

Solutions to TypeError:

Check Data Types: Review the code to ensure that operations are performed between compatible data types. If necessary, convert data types appropriately using type conversion functions.
Validate Function Arguments: Verify that the correct number and type of arguments are passed to functions, and ensure they are used in the correct order.
Handle Type Conversion Errors: Implement error handling mechanisms, such as try-except blocks, to gracefully handle type conversion errors and provide meaningful error messages to users.
Use Type Checking: Utilize type-checking mechanisms available in some programming languages or external libraries to validate data types before performing operations.
Read Documentation: Refer to the documentation of built-in functions and methods to understand their expected input types and usage guidelines.
Unit Testing: Implement unit tests to verify the behavior of functions and operations with different data types, helping to catch TypeError early in the development process.

Conclusion:

TypeError occurs when there is a mismatch between expected and actual data types in programming operations. By carefully checking data types, validating function arguments, handling type conversion errors, and utilizing appropriate error handling mechanisms, developers can effectively identify and resolve TypeError, ensuring the robustness and reliability of their code.

6 Replies

Posts: 26

loveboy

Mar 09, 2024 3:34 pm

(@loveboy)

Eminent Member

Joined: 7 months ago

Excellent work

This post was modified 7 months ago by loveboy

This post was modified 6 months ago by Administrator

Posts: 26

loveboy

Mar 11, 2024 10:37 pm

(@loveboy)

Eminent Member

Joined: 7 months ago

Can you share some code please

1 Reply

loveboy

(@loveboy)

Joined: 7 months ago

Eminent Member

Posts: 26

Mar 18, 2024 9:11 pm

Reply to

loveboy

<!doctype html>
<html class="no-js" lang="{{ request.locale.iso_code }}">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1">
<meta name="theme-color" content="">
<link rel="canonical" href="{{ canonical_url }}">

{%- if settings.favicon != blank -%}
<link rel="icon" type="image/png" href="{{ settings.favicon | image_url: width: 32, height: 32 }}">
{%- endif -%}

{%- unless settings.type_header_font.system? and settings.type_body_font.system? -%}
<link rel="preconnect" href="https://fonts.shopifycdn.com" crossorigin>
{%- endunless -%}

<title>
{{ page_title }}
{%- if current_tags %} – tagged "{{ current_tags | join: ', ' }}"{% endif -%}
{%- if current_page != 1 %} – Page {{ current_page }}{% endif -%}
{%- unless page_title contains shop.name %} – {{ shop.name }}{% endunless -%}
</title>

{% if page_description %}
<meta name="description" content="{{ page_description | escape }}">
{% endif %}

{% render 'meta-tags' %}

{%- liquid
assign body_font_bold = settings.type_body_font | font_modify: 'weight', 'bold'
assign body_font_italic = settings.type_body_font | font_modify: 'style', 'italic'
assign body_font_bold_italic = body_font_bold | font_modify: 'style', 'italic'
%}

{% style %}
{{ settings.type_body_font | font_face: font_display: 'swap' }}
{{ body_font_bold | font_face: font_display: 'swap' }}
{{ body_font_italic | font_face: font_display: 'swap' }}
{{ body_font_bold_italic | font_face: font_display: 'swap' }}
{{ settings.type_header_font | font_face: font_display: 'swap' }}

{% for scheme in settings.color_schemes -%}
{% assign scheme_classes = scheme_classes | append: ', .color-' | append: scheme.id %}
{% if forloop.index == 1 -%}
:root,
{%- endif %}
.color-{{ scheme.id }} {
--color-background: {{ scheme.settings.background.red }},{{ scheme.settings.background.green }},{{ scheme.settings.background.blue }};
{% if scheme.settings.background_gradient != empty %}
--gradient-background: {{ scheme.settings.background_gradient }};
{% else %}
--gradient-background: {{ scheme.settings.background }};
{% endif %}

{% liquid
assign background_color = scheme.settings.background
assign background_color_brightness = background_color | color_brightness
if background_color_brightness <= 26
assign background_color_contrast = background_color | color_lighten: 50
elsif background_color_brightness <= 65
assign background_color_contrast = background_color | color_lighten: 5
else
assign background_color_contrast = background_color | color_darken: 25
endif
%}

--color-foreground: {{ scheme.settings.text.red }},{{ scheme.settings.text.green }},{{ scheme.settings.text.blue }};
--color-background-contrast: {{ background_color_contrast.red }},{{ background_color_contrast.green }},{{ background_color_contrast.blue }};
--color-shadow: {{ scheme.settings.shadow.red }},{{ scheme.settings.shadow.green }},{{ scheme.settings.shadow.blue }};
--color-button: {{ scheme.settings.button.red }},{{ scheme.settings.button.green }},{{ scheme.settings.button.blue }};
--color-button-text: {{ scheme.settings.button_label.red }},{{ scheme.settings.button_label.green }},{{ scheme.settings.button_label.blue }};
--color-secondary-button: {{ scheme.settings.background.red }},{{ scheme.settings.background.green }},{{ scheme.settings.background.blue }};
--color-secondary-button-text: {{ scheme.settings.secondary_button_label.red }},{{ scheme.settings.secondary_button_label.green }},{{ scheme.settings.secondary_button_label.blue }};
--color-link: {{ scheme.settings.secondary_button_label.red }},{{ scheme.settings.secondary_button_label.green }},{{ scheme.settings.secondary_button_label.blue }};
--color-badge-foreground: {{ scheme.settings.text.red }},{{ scheme.settings.text.green }},{{ scheme.settings.text.blue }};
--color-badge-background: {{ scheme.settings.background.red }},{{ scheme.settings.background.green }},{{ scheme.settings.background.blue }};
--color-badge-border: {{ scheme.settings.text.red }},{{ scheme.settings.text.green }},{{ scheme.settings.text.blue }};
--payment-terms-background-color: rgb({{ scheme.settings.background.rgb }});
}
{% endfor %}

{{ scheme_classes | prepend: 'body' }} {
color: rgba(var(--color-foreground), 0.75);
background-color: rgb(var(--color-background));
}

:root {
--font-body-family: {{ settings.type_body_font.family }}, {{ settings.type_body_font.fallback_families }};
--font-body-style: {{ settings.type_body_font.style }};
--font-body-weight: {{ settings.type_body_font.weight }};
--font-body-weight-bold: {{ settings.type_body_font.weight | plus: 300 | at_most: 1000 }};

--font-heading-family: {{ settings.type_header_font.family }}, {{ settings.type_header_font.fallback_families }};
--font-heading-style: {{ settings.type_header_font.style }};
--font-heading-weight: {{ settings.type_header_font.weight }};

--font-body-scale: {{ settings.body_scale | divided_by: 100.0 }};
--font-heading-scale: {{ settings.heading_scale | times: 1.0 | divided_by: settings.body_scale }};

--media-padding: {{ settings.media_padding }}px;
--media-border-opacity: {{ settings.media_border_opacity | divided_by: 100.0 }};
--media-border-width: {{ settings.media_border_thickness }}px;
--media-radius: {{ settings.media_radius }}px;
--media-shadow-opacity: {{ settings.media_shadow_opacity | divided_by: 100.0 }};
--media-shadow-horizontal-offset: {{ settings.media_shadow_horizontal_offset }}px;
--media-shadow-vertical-offset: {{ settings.media_shadow_vertical_offset }}px;
--media-shadow-blur-radius: {{ settings.media_shadow_blur }}px;
--media-shadow-visible: {% if settings.media_shadow_opacity > 0 %}1{% else %}0{% endif %};

--page-width: {{ settings.page_width | divided_by: 10 }}rem;
--page-width-margin: {% if settings.page_width == '1600' %}2{% else %}0{% endif %}rem;

--product-card-image-padding: {{ settings.card_image_padding | divided_by: 10.0 }}rem;
--product-card-corner-radius: {{ settings.card_corner_radius | divided_by: 10.0 }}rem;
--product-card-text-alignment: {{ settings.card_text_alignment }};
--product-card-border-width: {{ settings.card_border_thickness | divided_by: 10.0 }}rem;
--product-card-border-opacity: {{ settings.card_border_opacity | divided_by: 100.0 }};
--product-card-shadow-opacity: {{ settings.card_shadow_opacity | divided_by: 100.0 }};
--product-card-shadow-visible: {% if settings.card_shadow_opacity > 0 %}1{% else %}0{% endif %};
--product-card-shadow-horizontal-offset: {{ settings.card_shadow_horizontal_offset | divided_by: 10.0 }}rem;
--product-card-shadow-vertical-offset: {{ settings.card_shadow_vertical_offset | divided_by: 10.0 }}rem;
--product-card-shadow-blur-radius: {{ settings.card_shadow_blur | divided_by: 10.0 }}rem;

--collection-card-image-padding: {{ settings.collection_card_image_padding | divided_by: 10.0 }}rem;
--collection-card-corner-radius: {{ settings.collection_card_corner_radius | divided_by: 10.0 }}rem;
--collection-card-text-alignment: {{ settings.collection_card_text_alignment }};
--collection-card-border-width: {{ settings.collection_card_border_thickness | divided_by: 10.0 }}rem;
--collection-card-border-opacity: {{ settings.collection_card_border_opacity | divided_by: 100.0 }};
--collection-card-shadow-opacity: {{ settings.collection_card_shadow_opacity | divided_by: 100.0 }};
--collection-card-shadow-visible: {% if settings.collection_card_shadow_opacity > 0 %}1{% else %}0{% endif %};
--collection-card-shadow-horizontal-offset: {{ settings.collection_card_shadow_horizontal_offset | divided_by: 10.0 }}rem;
--collection-card-shadow-vertical-offset: {{ settings.collection_card_shadow_vertical_offset | divided_by: 10.0 }}rem;
--collection-card-shadow-blur-radius: {{ settings.collection_card_shadow_blur | divided_by: 10.0 }}rem;

--blog-card-image-padding: {{ settings.blog_card_image_padding | divided_by: 10.0 }}rem;
--blog-card-corner-radius: {{ settings.blog_card_corner_radius | divided_by: 10.0 }}rem;
--blog-card-text-alignment: {{ settings.blog_card_text_alignment }};
--blog-card-border-width: {{ settings.blog_card_border_thickness | divided_by: 10.0 }}rem;
--blog-card-border-opacity: {{ settings.blog_card_border_opacity | divided_by: 100.0 }};
--blog-card-shadow-opacity: {{ settings.blog_card_shadow_opacity | divided_by: 100.0 }};
--blog-card-shadow-visible: {% if settings.blog_card_shadow_opacity > 0 %}1{% else %}0{% endif %};
--blog-card-shadow-horizontal-offset: {{ settings.blog_card_shadow_horizontal_offset | divided_by: 10.0 }}rem;
--blog-card-shadow-vertical-offset: {{ settings.blog_card_shadow_vertical_offset | divided_by: 10.0 }}rem;
--blog-card-shadow-blur-radius: {{ settings.blog_card_shadow_blur | divided_by: 10.0 }}rem;

--badge-corner-radius: {{ settings.badge_corner_radius | divided_by: 10.0 }}rem;

--popup-border-width: {{ settings.popup_border_thickness }}px;
--popup-border-opacity: {{ settings.popup_border_opacity | divided_by: 100.0 }};
--popup-corner-radius: {{ settings.popup_corner_radius }}px;
--popup-shadow-opacity: {{ settings.popup_shadow_opacity | divided_by: 100.0 }};
--popup-shadow-horizontal-offset: {{ settings.popup_shadow_horizontal_offset }}px;
--popup-shadow-vertical-offset: {{ settings.popup_shadow_vertical_offset }}px;
--popup-shadow-blur-radius: {{ settings.popup_shadow_blur }}px;

--drawer-border-width: {{ settings.drawer_border_thickness }}px;
--drawer-border-opacity: {{ settings.drawer_border_opacity | divided_by: 100.0 }};
--drawer-shadow-opacity: {{ settings.drawer_shadow_opacity | divided_by: 100.0 }};
--drawer-shadow-horizontal-offset: {{ settings.drawer_shadow_horizontal_offset }}px;
--drawer-shadow-vertical-offset: {{ settings.drawer_shadow_vertical_offset }}px;
--drawer-shadow-blur-radius: {{ settings.drawer_shadow_blur }}px;

--spacing-sections-desktop: {{ settings.spacing_sections }}px;
--spacing-sections-mobile: {% if settings.spacing_sections < 24 %}{{ settings.spacing_sections }}{% else %}{{ settings.spacing_sections | times: 0.7 | round | at_least: 20 }}{% endif %}px;

--grid-desktop-vertical-spacing: {{ settings.spacing_grid_vertical }}px;
--grid-desktop-horizontal-spacing: {{ settings.spacing_grid_horizontal }}px;
--grid-mobile-vertical-spacing: {{ settings.spacing_grid_vertical | divided_by: 2 }}px;
--grid-mobile-horizontal-spacing: {{ settings.spacing_grid_horizontal | divided_by: 2 }}px;

--text-boxes-border-opacity: {{ settings.text_boxes_border_opacity | divided_by: 100.0 }};
--text-boxes-border-width: {{ settings.text_boxes_border_thickness }}px;
--text-boxes-radius: {{ settings.text_boxes_radius }}px;
--text-boxes-shadow-opacity: {{ settings.text_boxes_shadow_opacity | divided_by: 100.0 }};
--text-boxes-shadow-visible: {% if settings.text_boxes_shadow_opacity > 0 %}1{% else %}0{% endif %};
--text-boxes-shadow-horizontal-offset: {{ settings.text_boxes_shadow_horizontal_offset }}px;
--text-boxes-shadow-vertical-offset: {{ settings.text_boxes_shadow_vertical_offset }}px;
--text-boxes-shadow-blur-radius: {{ settings.text_boxes_shadow_blur }}px;

--buttons-radius: {{ settings.buttons_radius }}px;
--buttons-radius-outset: {% if settings.buttons_radius > 0 %}{{ settings.buttons_radius | plus: settings.buttons_border_thickness }}{% else %}0{% endif %}px;
--buttons-border-width: {% if settings.buttons_border_opacity > 0 %}{{ settings.buttons_border_thickness }}{% else %}0{% endif %}px;
--buttons-border-opacity: {{ settings.buttons_border_opacity | divided_by: 100.0 }};
--buttons-shadow-opacity: {{ settings.buttons_shadow_opacity | divided_by: 100.0 }};
--buttons-shadow-visible: {% if settings.buttons_shadow_opacity > 0 %}1{% else %}0{% endif %};
--buttons-shadow-horizontal-offset: {{ settings.buttons_shadow_horizontal_offset }}px;
--buttons-shadow-vertical-offset: {{ settings.buttons_shadow_vertical_offset }}px;
--buttons-shadow-blur-radius: {{ settings.buttons_shadow_blur }}px;
--buttons-border-offset: {% if settings.buttons_radius > 0 or settings.buttons_shadow_opacity > 0 %}0.3{% else %}0{% endif %}px;

--inputs-radius: {{ settings.inputs_radius }}px;
--inputs-border-width: {{ settings.inputs_border_thickness }}px;
--inputs-border-opacity: {{ settings.inputs_border_opacity | divided_by: 100.0 }};
--inputs-shadow-opacity: {{ settings.inputs_shadow_opacity | divided_by: 100.0 }};
--inputs-shadow-horizontal-offset: {{ settings.inputs_shadow_horizontal_offset }}px;
--inputs-margin-offset: {% if settings.inputs_shadow_vertical_offset != 0 and settings.inputs_shadow_opacity > 0 %}{{ settings.inputs_shadow_vertical_offset | abs }}{% else %}0{% endif %}px;
--inputs-shadow-vertical-offset: {{ settings.inputs_shadow_vertical_offset }}px;
--inputs-shadow-blur-radius: {{ settings.inputs_shadow_blur }}px;
--inputs-radius-outset: {% if settings.inputs_radius > 0 %}{{ settings.inputs_radius | plus: settings.inputs_border_thickness }}{% else %}0{% endif %}px;

--variant-pills-radius: {{ settings.variant_pills_radius }}px;
--variant-pills-border-width: {{ settings.variant_pills_border_thickness }}px;
--variant-pills-border-opacity: {{ settings.variant_pills_border_opacity | divided_by: 100.0 }};
--variant-pills-shadow-opacity: {{ settings.variant_pills_shadow_opacity | divided_by: 100.0 }};
--variant-pills-shadow-horizontal-offset: {{ settings.variant_pills_shadow_horizontal_offset }}px;
--variant-pills-shadow-vertical-offset: {{ settings.variant_pills_shadow_vertical_offset }}px;
--variant-pills-shadow-blur-radius: {{ settings.variant_pills_shadow_blur }}px;
}

*,
*::before,
*::after {
box-sizing: inherit;
}

html {
box-sizing: border-box;
font-size: calc(var(--font-body-scale) * 62.5%);
height: 100%;
}

body {
display: grid;
grid-template-rows: auto auto 1fr auto;
grid-template-columns: 100%;
min-height: 100%;
margin: 0;
font-size: 1.5rem;
letter-spacing: 0.06rem;
line-height: calc(1 + 0.8 / var(--font-body-scale));
font-family: var(--font-body-family);
font-style: var(--font-body-style);
font-weight: var(--font-body-weight);
}

@media screen and (min-width: 750px) {
body {
font-size: 1.6rem;
}
}
{% endstyle %}

{%- unless settings.type_body_font.system? -%}
<link rel="preload" as="font" href="{{ settings.type_body_font | font_url }}" type="font/woff2" crossorigin>
{%- endunless -%}
{%- unless settings.type_header_font.system? -%}
<link rel="preload" as="font" href="{{ settings.type_header_font | font_url }}" type="font/woff2" crossorigin>
{%- endunless -%}

{%- if localization.available_countries.size > 1 or localization.available_languages.size > 1 -%}
{{ 'component-localization-form.css' | asset_url | stylesheet_tag: preload: true }}
<script src="{{ 'localization-form.js' | asset_url }}" defer="defer"></script>
{%- endif -%}

{%- if settings.predictive_search_enabled -%}
<link
rel="stylesheet"
href="{{ 'component-predictive-search.css' | asset_url }}"
media="print"
onload="this.media='all'"
>
{%- endif -%}

<body class="gradient{% if settings.animations_hover_elements != 'none' %} animate--hover-{{ settings.animations_hover_elements }}{% endif %}">
<a class="skip-to-content-link button visually-hidden" href="#MainContent">
{{ 'accessibility.skip_to_text' | t }}
</a>

{%- if settings.cart_type == 'drawer' -%}
{%- render 'cart-drawer' -%}
{%- endif -%}

{% sections 'header-group' %}

<main id="MainContent" class="content-for-layout focus-none" role="main" tabindex="-1">
{{ content_for_layout }}
</main>

{% sections 'footer-group' %}

<ul hidden>
<li id="a11y-refresh-page-message">{{ 'accessibility.refresh_page' | t }}</li>
<li id="a11y-new-window-message">{{ 'accessibility.link_messages.new_window' | t }}</li>
</ul>

window.cartStrings = {
error: `{{ 'sections.cart.cart_error' | t }}`,
quantityError: `{{ 'sections.cart.cart_quantity_error_html' | t: quantity: '[quantity]' }}`,
};

window.variantStrings = {
addToCart: `{{ 'products.product.add_to_cart' | t }}`,
soldOut: `{{ 'products.product.sold_out' | t }}`,
unavailable: `{{ 'products.product.unavailable' | t }}`,
unavailable_with_option: `{{ 'products.product.value_unavailable' | t: option_value: '[value]' }}`,
};

window.quickOrderListStrings = {
itemsAdded: `{{ 'sections.quick_order_list.items_added.other' | t: quantity: '[quantity]' }}`,
itemAdded: `{{ 'sections.quick_order_list.items_added.one' | t: quantity: '[quantity]' }}`,
itemsRemoved: `{{ 'sections.quick_order_list.items_removed.other' | t: quantity: '[quantity]' }}`,
itemRemoved: `{{ 'sections.quick_order_list.items_removed.one' | t: quantity: '[quantity]' }}`,
viewCart: `{{- 'sections.quick_order_list.view_cart' | t -}}`,
each: `{{- 'sections.quick_order_list.each' | t: money: '[money]' }}`,
};

window.accessibilityStrings = {
imageAvailable: `{{ 'products.product.media.image_available' | t: index: '[index]' }}`,
shareSuccess: `{{ 'general.share.success_message' | t }}`,
pauseSlideshow: `{{ 'sections.slideshow.pause_slideshow' | t }}`,
playSlideshow: `{{ 'sections.slideshow.play_slideshow' | t }}`,
recipientFormExpanded: `{{ 'recipient.form.expanded' | t }}`,
recipientFormCollapsed: `{{ 'recipient.form.collapsed' | t }}`,
countrySelectorSearchCount: `{{ 'localization.country_results_count' | t: count: '[count]' }}`,
};
</script>

{%- if settings.predictive_search_enabled -%}
<script src="{{ 'predictive-search.js' | asset_url }}" defer="defer"></script>
{%- endif -%}
</body>
</html>

Posts: 26

loveboy

Mar 18, 2024 9:03 pm

(@loveboy)

Eminent Member

Joined: 7 months ago