chore: remove isRequired from curriculum files

2020-09-18 17:41:11 +01:00
parent 984f311061
commit a86b220eb7
237 changed files with 0 additions and 247 deletions
--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/build-your-own-functions.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/build-your-own-functions.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f060b6c005b0e76f05b
 title: Build your own Functions
 challengeType: 11
-isRequired: true
 videoId: nLDychdBwUg
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/comparing-and-sorting-tuples.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/comparing-and-sorting-tuples.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0b0b6c005b0e76f06d
 title: Comparing and Sorting Tuples
 challengeType: 11
-isRequired: true
 videoId: dZXzBXUxxCs
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/conditional-execution.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/conditional-execution.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f050b6c005b0e76f058
 title: Conditional Execution
 challengeType: 11
-isRequired: true
 videoId: gz_IfIsZQtc
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/data-visualization-mailing-lists.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/data-visualization-mailing-lists.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f6a0b6c005b0e76f097
 title: 'Data Visualization: Mailing Lists'
 challengeType: 11
-isRequired: true
 videoId: RYdW660KkaQ
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/data-visualization-page-rank.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/data-visualization-page-rank.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f6a0b6c005b0e76f096
 title: 'Data Visualization: Page Rank'
 challengeType: 11
-isRequired: true
 videoId: 6-w_qIUwaxU
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/dictionaries-and-loops.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/dictionaries-and-loops.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0a0b6c005b0e76f069
 title: Dictionaries and Loops
 challengeType: 11
-isRequired: true
 videoId: EEmekKiKG70
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/dictionaries-common-applications.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/dictionaries-common-applications.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f090b6c005b0e76f068
 title: "Dictionaries: Common Applications"
 challengeType: 11
-isRequired: true
 videoId: f17xPfIXct0
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/files-as-a-sequence.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/files-as-a-sequence.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f080b6c005b0e76f063
 title: Files as a Sequence
 challengeType: 11
-isRequired: true
 videoId: cIA0EokbaHE
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/intermediate-expressions.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/intermediate-expressions.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f050b6c005b0e76f057
 title: Intermediate Expressions
 challengeType: 11
-isRequired: true
 videoId: dKgUaIa5ATg
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/intermediate-strings.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/intermediate-strings.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f070b6c005b0e76f061
 title: Intermediate Strings
 challengeType: 11
-isRequired: true
 videoId: KgT_fYLXnyk
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/introduction-elements-of-python.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/introduction-elements-of-python.english.md
@ -2,7 +2,6 @@
 id: 5e6a54c358d3af90110a60a3
 title: 'Introduction: Elements of Python'
 challengeType: 11
-isRequired: true
 videoId: aRY_xjL35v0
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/introduction-hardware-achitecture.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/introduction-hardware-achitecture.english.md
@ -2,7 +2,6 @@
 id: 5e6a54af58d3af90110a60a1
 title: 'Introduction: Hardware Architecture'
 challengeType: 11
-isRequired: true
 videoId: H6qtjRTfSog
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/introduction-python-as-a-language.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/introduction-python-as-a-language.english.md
@ -2,7 +2,6 @@
 id: 5e6a54ba58d3af90110a60a2
 title: 'Introduction: Python as a Language'
 challengeType: 11
-isRequired: true
 videoId: 0QeGbZNS_bY
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/introduction-why-program.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/introduction-why-program.english.md
@ -2,7 +2,6 @@
 id: 5e6a54a558d3af90110a60a0
 title: 'Introduction: Why Program?'
 challengeType: 11
-isRequired: true
 videoId: 3muQV-Im3Z0
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/iterations-definite-loops.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/iterations-definite-loops.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f070b6c005b0e76f05d
 title: 'Iterations: Definite Loops'
 challengeType: 11
-isRequired: true
 videoId: hiRTRAqNlpE
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/iterations-loop-idioms.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/iterations-loop-idioms.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f070b6c005b0e76f05e
 title: 'Iterations: Loop Idioms'
 challengeType: 11
-isRequired: true
 videoId: AelGAcoMXbI
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/iterations-more-patterns.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/iterations-more-patterns.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f070b6c005b0e76f05f
 title: 'Iterations: More Patterns'
 challengeType: 11
-isRequired: true
 videoId: 9Wtqo6vha1M
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/loops-and-iterations.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/loops-and-iterations.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f060b6c005b0e76f05c
 title: Loops and Iterations
 challengeType: 11
-isRequired: true
 videoId: dLA-szNRnUY
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/make-a-relational-database.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/make-a-relational-database.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f170b6c005b0e76f08b
 title: Make a Relational Database
 challengeType: 11
-isRequired: true
 videoId: MQ5z4bdF92U
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/more-conditional-structures.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/more-conditional-structures.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f060b6c005b0e76f059
 title: More Conditional Structures
 challengeType: 11
-isRequired: true
 videoId: HdL82tAZR20
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-protocol.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-protocol.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0c0b6c005b0e76f072
 title: Networking Protocol
 challengeType: 11
-isRequired: true
 videoId: c6vZGescaSc
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-text-processing.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-text-processing.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0c0b6c005b0e76f074
 title: 'Networking: Text Processing'
 challengeType: 11
-isRequired: true
 videoId: Pv_pJgVu8WI
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-using-urllib-in-python.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-using-urllib-in-python.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0d0b6c005b0e76f075
 title: 'Networking: Using urllib in Python'
 challengeType: 11
-isRequired: true
 videoId: 7lFM1T_CxBs
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-web-scraping-with-python.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-web-scraping-with-python.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0d0b6c005b0e76f076
 title: 'Networking: Web Scraping with Python'
 challengeType: 11
-isRequired: true
 videoId: Uyioq2q4cEg
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-with-python.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-with-python.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0c0b6c005b0e76f071
 title: Networking with Python
 challengeType: 11
-isRequired: true
 videoId: _kJvneKVdNM
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-write-a-web-browser.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/networking-write-a-web-browser.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0c0b6c005b0e76f073
 title: 'Networking: Write a Web Browser'
 challengeType: 11
-isRequired: true
 videoId: zjyT9DaAjx4
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/object-lifecycle.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/object-lifecycle.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f170b6c005b0e76f087
 title: Object Lifecycle
 challengeType: 11
-isRequired: true
 videoId: p1r3h_AMMIM
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/objects-a-sample-class.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/objects-a-sample-class.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f160b6c005b0e76f086
 title: 'Objects: A Sample Class'
 challengeType: 11
-isRequired: true
 videoId: FiABKEuaSJ8
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/objects-inheritance.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/objects-inheritance.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f170b6c005b0e76f088
 title: 'Objects: Inheritance'
 challengeType: 11
-isRequired: true
 videoId: FBL3alYrxRM
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/python-dictionaries.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/python-dictionaries.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f090b6c005b0e76f067
 title: Python Dictionaries
 challengeType: 11
-isRequired: true
 videoId: dnzvfimrRMg
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/python-functions.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/python-functions.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f060b6c005b0e76f05a
 title: Python Functions
 challengeType: 11
-isRequired: true
 videoId: 3JGF-n3tDPU
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/python-lists.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/python-lists.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f080b6c005b0e76f064
 title: Python Lists
 challengeType: 11
-isRequired: true
 videoId: Y0cvfDpYC_c
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/python-objects.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/python-objects.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f160b6c005b0e76f085
 title: Python Objects
 challengeType: 11
-isRequired: true
 videoId: uJxGeTYy0us
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/reading-files.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/reading-files.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f080b6c005b0e76f062
 title: Reading Files
 challengeType: 11
-isRequired: true
 videoId: Fo1tW09KIwo
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/regular-expressions-matching-and-extracting-data.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/regular-expressions-matching-and-extracting-data.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0b0b6c005b0e76f06f
 title: 'Regular Expressions: Matching and Extracting Data'
 challengeType: 11
-isRequired: true
 videoId: LaCZnTbQGkE
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/regular-expressions-practical-applications.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/regular-expressions-practical-applications.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0b0b6c005b0e76f070
 title: 'Regular Expressions: Practical Applications'
 challengeType: 11
-isRequired: true
 videoId: xCjFU9G6x48
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/regular-expressions.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/regular-expressions.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0b0b6c005b0e76f06e
 title: Regular Expressions
 challengeType: 11
-isRequired: true
 videoId: Yud_COr6pZo
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/relational-database-design.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/relational-database-design.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f180b6c005b0e76f08c
 title: Relational Database Design
 challengeType: 11
-isRequired: true
 videoId: AqdfbrpkbHk
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/relational-databases-and-sqlite.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/relational-databases-and-sqlite.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f170b6c005b0e76f08a
 title: 'Relational Databases and SQLite'
 challengeType: 11
-isRequired: true
 videoId: QlNod5-kFpA
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/relational-databases-join-operation.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/relational-databases-join-operation.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f180b6c005b0e76f08f
 title: 'Relational Databases: Join Operation'
 challengeType: 11
-isRequired: true
 videoId: jvDw3D9GKac
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/relational-databases-many-to-many-relationships.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/relational-databases-many-to-many-relationships.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f190b6c005b0e76f090
 title: 'Relational Databases: Many-to-many Relationships'
 challengeType: 11
-isRequired: true
 videoId: z-SBYcvEQOc
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/relational-databases-relationship-building.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/relational-databases-relationship-building.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f180b6c005b0e76f08e
 title: 'Relational Databases: Relationship Building'
 challengeType: 11
-isRequired: true
 videoId: CSbqczsHVnc
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/representing-relationships-in-a-relational-database.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/representing-relationships-in-a-relational-database.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f180b6c005b0e76f08d
 title: Representing Relationships in a Relational Database
 challengeType: 11
-isRequired: true
 videoId: -orenCNdC2Q
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/strings-and-lists.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/strings-and-lists.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f090b6c005b0e76f066
 title: Strings and Lists
 challengeType: 11
-isRequired: true
 videoId: lxcFa7ldCi0
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/strings-in-python.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/strings-in-python.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f070b6c005b0e76f060
 title: Strings in Python
 challengeType: 11
-isRequired: true
 videoId: LYZj207fKpQ
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/the-tuples-collection.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/the-tuples-collection.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0a0b6c005b0e76f06c
 title: The Tuples Collection
 challengeType: 11
-isRequired: true
 videoId: 3Lxpladfh2k
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/using-web-services.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/using-web-services.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0e0b6c005b0e76f07a
 title: Using Web Services
 challengeType: 11
-isRequired: true
 videoId: oNl1OVDPGKE
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/variables-expressions-and-statements.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/variables-expressions-and-statements.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f050b6c005b0e76f056
 title: Variables, Expressions, and Statements
 challengeType: 11
-isRequired: true
 videoId: nELR-uyyrok
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/visualizing-data-with-python.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/visualizing-data-with-python.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f690b6c005b0e76f095
 title: Visualizing Data with Python
 challengeType: 11
-isRequired: true
 videoId: e3lydkH0prw
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-api-rate-limiting-and-security.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-api-rate-limiting-and-security.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f150b6c005b0e76f080
 title: 'Web Services: API Rate Limiting and Security'
 challengeType: 11
-isRequired: true
 videoId: pI-g0lI8ngs
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-apis.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-apis.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f150b6c005b0e76f07f
 title: 'Web Services: APIs'
 challengeType: 11
-isRequired: true
 videoId: oUNn1psfBJg
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-json.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-json.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f140b6c005b0e76f07d
 title: 'Web Services: JSON'
 challengeType: 11
-isRequired: true
 videoId: ZJE-U56BppM
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-service-oriented-approach.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-service-oriented-approach.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f140b6c005b0e76f07e
 title: 'Web Services: Service Oriented Approach'
 challengeType: 11
-isRequired: true
 videoId: muerlsCHExI
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-xml-schema.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-xml-schema.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0e0b6c005b0e76f07c
 title: 'Web Services: XML Schema'
 challengeType: 11
-isRequired: true
 videoId: yWU9kTxW-nc
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-xml.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/web-services-xml.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f0e0b6c005b0e76f07b
 title: 'Web Services: XML'
 challengeType: 11
-isRequired: true
 videoId: _pZ0srbg7So
 ---

--- a/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/working-with-lists.english.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/working-with-lists.english.md
@ -2,7 +2,6 @@
 id: 5e7b9f090b6c005b0e76f065
 title: Working with Lists
 challengeType: 11
-isRequired: true
 videoId: lCnHfTHkhbE
 ---