Explore Courses
Liverpool Business SchoolLiverpool Business SchoolMBA by Liverpool Business School
  • 18 Months
Bestseller
Golden Gate UniversityGolden Gate UniversityMBA (Master of Business Administration)
  • 15 Months
Popular
O.P.Jindal Global UniversityO.P.Jindal Global UniversityMaster of Business Administration (MBA)
  • 12 Months
New
Birla Institute of Management Technology Birla Institute of Management Technology Post Graduate Diploma in Management (BIMTECH)
  • 24 Months
Liverpool John Moores UniversityLiverpool John Moores UniversityMS in Data Science
  • 18 Months
Popular
IIIT BangaloreIIIT BangalorePost Graduate Programme in Data Science & AI (Executive)
  • 12 Months
Bestseller
Golden Gate UniversityGolden Gate UniversityDBA in Emerging Technologies with concentration in Generative AI
  • 3 Years
upGradupGradData Science Bootcamp with AI
  • 6 Months
New
University of MarylandIIIT BangalorePost Graduate Certificate in Data Science & AI (Executive)
  • 8-8.5 Months
upGradupGradData Science Bootcamp with AI
  • 6 months
Popular
upGrad KnowledgeHutupGrad KnowledgeHutData Engineer Bootcamp
  • Self-Paced
upGradupGradCertificate Course in Business Analytics & Consulting in association with PwC India
  • 06 Months
OP Jindal Global UniversityOP Jindal Global UniversityMaster of Design in User Experience Design
  • 12 Months
Popular
WoolfWoolfMaster of Science in Computer Science
  • 18 Months
New
Jindal Global UniversityJindal Global UniversityMaster of Design in User Experience
  • 12 Months
New
Rushford, GenevaRushford Business SchoolDBA Doctorate in Technology (Computer Science)
  • 36 Months
IIIT BangaloreIIIT BangaloreCloud Computing and DevOps Program (Executive)
  • 8 Months
New
upGrad KnowledgeHutupGrad KnowledgeHutAWS Solutions Architect Certification
  • 32 Hours
upGradupGradFull Stack Software Development Bootcamp
  • 6 Months
Popular
upGradupGradUI/UX Bootcamp
  • 3 Months
upGradupGradCloud Computing Bootcamp
  • 7.5 Months
Golden Gate University Golden Gate University Doctor of Business Administration in Digital Leadership
  • 36 Months
New
Jindal Global UniversityJindal Global UniversityMaster of Design in User Experience
  • 12 Months
New
Golden Gate University Golden Gate University Doctor of Business Administration (DBA)
  • 36 Months
Bestseller
Ecole Supérieure de Gestion et Commerce International ParisEcole Supérieure de Gestion et Commerce International ParisDoctorate of Business Administration (DBA)
  • 36 Months
Rushford, GenevaRushford Business SchoolDoctorate of Business Administration (DBA)
  • 36 Months
KnowledgeHut upGradKnowledgeHut upGradSAFe® 6.0 Certified ScrumMaster (SSM) Training
  • Self-Paced
KnowledgeHut upGradKnowledgeHut upGradPMP® certification
  • Self-Paced
IIM KozhikodeIIM KozhikodeProfessional Certification in HR Management and Analytics
  • 6 Months
Bestseller
Duke CEDuke CEPost Graduate Certificate in Product Management
  • 4-8 Months
Bestseller
upGrad KnowledgeHutupGrad KnowledgeHutLeading SAFe® 6.0 Certification
  • 16 Hours
Popular
upGrad KnowledgeHutupGrad KnowledgeHutCertified ScrumMaster®(CSM) Training
  • 16 Hours
Bestseller
PwCupGrad CampusCertification Program in Financial Modelling & Analysis in association with PwC India
  • 4 Months
upGrad KnowledgeHutupGrad KnowledgeHutSAFe® 6.0 POPM Certification
  • 16 Hours
O.P.Jindal Global UniversityO.P.Jindal Global UniversityMaster of Science in Artificial Intelligence and Data Science
  • 12 Months
Bestseller
Liverpool John Moores University Liverpool John Moores University MS in Machine Learning & AI
  • 18 Months
Popular
Golden Gate UniversityGolden Gate UniversityDBA in Emerging Technologies with concentration in Generative AI
  • 3 Years
IIIT BangaloreIIIT BangaloreExecutive Post Graduate Programme in Machine Learning & AI
  • 13 Months
Bestseller
IIITBIIITBExecutive Program in Generative AI for Leaders
  • 4 Months
upGradupGradAdvanced Certificate Program in GenerativeAI
  • 4 Months
New
IIIT BangaloreIIIT BangalorePost Graduate Certificate in Machine Learning & Deep Learning (Executive)
  • 8 Months
Bestseller
Jindal Global UniversityJindal Global UniversityMaster of Design in User Experience
  • 12 Months
New
Liverpool Business SchoolLiverpool Business SchoolMBA with Marketing Concentration
  • 18 Months
Bestseller
Golden Gate UniversityGolden Gate UniversityMBA with Marketing Concentration
  • 15 Months
Popular
MICAMICAAdvanced Certificate in Digital Marketing and Communication
  • 6 Months
Bestseller
MICAMICAAdvanced Certificate in Brand Communication Management
  • 5 Months
Popular
upGradupGradDigital Marketing Accelerator Program
  • 05 Months
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Corporate & Financial Law
  • 12 Months
Bestseller
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in AI and Emerging Technologies (Blended Learning Program)
  • 12 Months
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Intellectual Property & Technology Law
  • 12 Months
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Dispute Resolution
  • 12 Months
upGradupGradContract Law Certificate Program
  • Self paced
New
ESGCI, ParisESGCI, ParisDoctorate of Business Administration (DBA) from ESGCI, Paris
  • 36 Months
Golden Gate University Golden Gate University Doctor of Business Administration From Golden Gate University, San Francisco
  • 36 Months
Rushford Business SchoolRushford Business SchoolDoctor of Business Administration from Rushford Business School, Switzerland)
  • 36 Months
Edgewood CollegeEdgewood CollegeDoctorate of Business Administration from Edgewood College
  • 24 Months
Golden Gate UniversityGolden Gate UniversityDBA in Emerging Technologies with Concentration in Generative AI
  • 36 Months
Golden Gate University Golden Gate University DBA in Digital Leadership from Golden Gate University, San Francisco
  • 36 Months
Liverpool Business SchoolLiverpool Business SchoolMBA by Liverpool Business School
  • 18 Months
Bestseller
Golden Gate UniversityGolden Gate UniversityMBA (Master of Business Administration)
  • 15 Months
Popular
O.P.Jindal Global UniversityO.P.Jindal Global UniversityMaster of Business Administration (MBA)
  • 12 Months
New
Deakin Business School and Institute of Management Technology, GhaziabadDeakin Business School and IMT, GhaziabadMBA (Master of Business Administration)
  • 12 Months
Liverpool John Moores UniversityLiverpool John Moores UniversityMS in Data Science
  • 18 Months
Bestseller
O.P.Jindal Global UniversityO.P.Jindal Global UniversityMaster of Science in Artificial Intelligence and Data Science
  • 12 Months
Bestseller
IIIT BangaloreIIIT BangalorePost Graduate Programme in Data Science (Executive)
  • 12 Months
Bestseller
O.P.Jindal Global UniversityO.P.Jindal Global UniversityO.P.Jindal Global University
  • 12 Months
WoolfWoolfMaster of Science in Computer Science
  • 18 Months
New
Liverpool John Moores University Liverpool John Moores University MS in Machine Learning & AI
  • 18 Months
Popular
Golden Gate UniversityGolden Gate UniversityDBA in Emerging Technologies with concentration in Generative AI
  • 3 Years
Rushford, GenevaRushford Business SchoolDoctorate of Business Administration (AI/ML)
  • 36 Months
Ecole Supérieure de Gestion et Commerce International ParisEcole Supérieure de Gestion et Commerce International ParisDBA Specialisation in AI & ML
  • 36 Months
Golden Gate University Golden Gate University Doctor of Business Administration (DBA)
  • 36 Months
Bestseller
Ecole Supérieure de Gestion et Commerce International ParisEcole Supérieure de Gestion et Commerce International ParisDoctorate of Business Administration (DBA)
  • 36 Months
Rushford, GenevaRushford Business SchoolDoctorate of Business Administration (DBA)
  • 36 Months
Liverpool Business SchoolLiverpool Business SchoolMBA with Marketing Concentration
  • 18 Months
Bestseller
Golden Gate UniversityGolden Gate UniversityMBA with Marketing Concentration
  • 15 Months
Popular
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Corporate & Financial Law
  • 12 Months
Bestseller
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Intellectual Property & Technology Law
  • 12 Months
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Dispute Resolution
  • 12 Months
IIITBIIITBExecutive Program in Generative AI for Leaders
  • 4 Months
New
IIIT BangaloreIIIT BangaloreExecutive Post Graduate Programme in Machine Learning & AI
  • 13 Months
Bestseller
upGradupGradData Science Bootcamp with AI
  • 6 Months
New
upGradupGradAdvanced Certificate Program in GenerativeAI
  • 4 Months
New
KnowledgeHut upGradKnowledgeHut upGradSAFe® 6.0 Certified ScrumMaster (SSM) Training
  • Self-Paced
upGrad KnowledgeHutupGrad KnowledgeHutCertified ScrumMaster®(CSM) Training
  • 16 Hours
upGrad KnowledgeHutupGrad KnowledgeHutLeading SAFe® 6.0 Certification
  • 16 Hours
KnowledgeHut upGradKnowledgeHut upGradPMP® certification
  • Self-Paced
upGrad KnowledgeHutupGrad KnowledgeHutAWS Solutions Architect Certification
  • 32 Hours
upGrad KnowledgeHutupGrad KnowledgeHutAzure Administrator Certification (AZ-104)
  • 24 Hours
KnowledgeHut upGradKnowledgeHut upGradAWS Cloud Practioner Essentials Certification
  • 1 Week
KnowledgeHut upGradKnowledgeHut upGradAzure Data Engineering Training (DP-203)
  • 1 Week
MICAMICAAdvanced Certificate in Digital Marketing and Communication
  • 6 Months
Bestseller
MICAMICAAdvanced Certificate in Brand Communication Management
  • 5 Months
Popular
IIM KozhikodeIIM KozhikodeProfessional Certification in HR Management and Analytics
  • 6 Months
Bestseller
Duke CEDuke CEPost Graduate Certificate in Product Management
  • 4-8 Months
Bestseller
Loyola Institute of Business Administration (LIBA)Loyola Institute of Business Administration (LIBA)Executive PG Programme in Human Resource Management
  • 11 Months
Popular
Goa Institute of ManagementGoa Institute of ManagementExecutive PG Program in Healthcare Management
  • 11 Months
IMT GhaziabadIMT GhaziabadAdvanced General Management Program
  • 11 Months
Golden Gate UniversityGolden Gate UniversityProfessional Certificate in Global Business Management
  • 6-8 Months
upGradupGradContract Law Certificate Program
  • Self paced
New
IU, GermanyIU, GermanyMaster of Business Administration (90 ECTS)
  • 18 Months
Bestseller
IU, GermanyIU, GermanyMaster in International Management (120 ECTS)
  • 24 Months
Popular
IU, GermanyIU, GermanyB.Sc. Computer Science (180 ECTS)
  • 36 Months
Clark UniversityClark UniversityMaster of Business Administration
  • 23 Months
New
Golden Gate UniversityGolden Gate UniversityMaster of Business Administration
  • 20 Months
Clark University, USClark University, USMS in Project Management
  • 20 Months
New
Edgewood CollegeEdgewood CollegeMaster of Business Administration
  • 23 Months
The American Business SchoolThe American Business SchoolMBA with specialization
  • 23 Months
New
Aivancity ParisAivancity ParisMSc Artificial Intelligence Engineering
  • 24 Months
Aivancity ParisAivancity ParisMSc Data Engineering
  • 24 Months
The American Business SchoolThe American Business SchoolMBA with specialization
  • 23 Months
New
Aivancity ParisAivancity ParisMSc Artificial Intelligence Engineering
  • 24 Months
Aivancity ParisAivancity ParisMSc Data Engineering
  • 24 Months
upGradupGradData Science Bootcamp with AI
  • 6 Months
Popular
upGrad KnowledgeHutupGrad KnowledgeHutData Engineer Bootcamp
  • Self-Paced
upGradupGradFull Stack Software Development Bootcamp
  • 6 Months
Bestseller
KnowledgeHut upGradKnowledgeHut upGradBackend Development Bootcamp
  • Self-Paced
upGradupGradUI/UX Bootcamp
  • 3 Months
upGradupGradCloud Computing Bootcamp
  • 7.5 Months
PwCupGrad CampusCertification Program in Financial Modelling & Analysis in association with PwC India
  • 5 Months
upGrad KnowledgeHutupGrad KnowledgeHutSAFe® 6.0 POPM Certification
  • 16 Hours
upGradupGradDigital Marketing Accelerator Program
  • 05 Months
upGradupGradAdvanced Certificate Program in GenerativeAI
  • 4 Months
New
upGradupGradData Science Bootcamp with AI
  • 6 Months
Popular
upGradupGradFull Stack Software Development Bootcamp
  • 6 Months
Bestseller
upGradupGradUI/UX Bootcamp
  • 3 Months
PwCupGrad CampusCertification Program in Financial Modelling & Analysis in association with PwC India
  • 4 Months
upGradupGradCertificate Course in Business Analytics & Consulting in association with PwC India
  • 06 Months
upGradupGradDigital Marketing Accelerator Program
  • 05 Months

Goto Statement in Python: What You Need to Know in 2024

Updated on 14 February, 2024

13.95K+ views
8 min read

Introduction

Among the plethora of modern programming languages that exist currently, Python is increasingly popular among a large chunk of users. This popularity is mostly owed to the flexibility that it grants to its users by not strictly adhering to traditional syntaxes that its contemporaries do. Consequently, its user-friendliness has resulted in it being a central part of multiple software industries across the globe today. From amateurs to weathered professionals, Python has now become the language of choice for most programmers out there. If you want to gain data science certification, check out our website.

Long-time Python users swear by the diverse range of statements and the subsequently enhanced functionality that it accords them. However, since the number of conventionally used statements is so vast, several equally handy commands go unnoticed as well. One such example is the goto statement in Python. The purpose of this article is to give the readers a greater insight into goto in Python.

Python’s goto statement is an essential piece of code or syntax that enables the user to skip a certain number of statements or a block of code in the program body. In technical terms, it carries out an unconditional jump from the goto statement to the point that is designated as the destination within the context of the same function that is being compiled.

The goto function’s syntax is relatively straightforward for it couples the keyword “goto” with a template label name that can be customized as per the user’s requirement. As long as the text does not consist of the keyword “go”, it can be placed anywhere in the program’s body. It does not make a difference if someone chooses to place the label above the go statement, or for that matter, below it. 

The goto statement as such is widely used by a large chunk of users who program in Python. However, for all its probability, this statement’s use is usually discouraged when auditing purposes are concerned. This is primarily because the presence of a goto statement in an auditing context makes it very difficult for someone to trace the program’s flow.

Consequently, if there ever does arise a situation where a programmer is required to alter any content of the program at any point in time, determining the exact location becomes an uphill task. As the use of the goto statement entails the skipping of a select portion or block of the function, the user finds it difficult to trace the program flow and narrow in on the exact location at which the modification is to be carried out. 

The goto statement has a fun nugget of history attached to it. It is widely believed that when the goto statement was first released, on 1st April 2004, it was supposed to be used as a joke. However, upon realizing the utility of the syntax at hand, programmers started taking the statement seriously. Thus goto gradually grew to enjoy the widespread endorsement that it continues to have to date. 

Goto statement and its iterations

When we talk about an iteration of the goto statement, we are broadly referring to another similar piece of code or syntax that has more or less the same functionality as the goto statement. In the context of Python, these criteria are met by the Comefrom the statement. Comefrom the statement, as a code, works the same way as the goto command works. Both goto and Comefrom’s purpose is to render an added flexibility to the master program as such, which they manage to execute rather conveniently.

As a result, you as a user are accorded greater control over the program flow mechanisms and exercise your liberty within the program’s construct as and when you deem fit. Consequently, it makes way for increased accessibility to varying degrees of the control flow of idioms, which were mostly foreign and virtually out of bounds for the user until this point in time.

To use either of goto or Comefrom statements in a Python program, one first has to import the main library. This is generally achieved by a very straightforward and easy to execute a piece of code which reads as below:

from goto import goto, Comefrom, label

Even though Python does not necessitate memorizing any complicated syntax structures as such, one stands to benefit by a good deal by having codes, like the one mentioned above, at their fingerprints. Implementing commands by importing the main library is core to Python. Thus familiarity with such pieces of code can help save a considerable amount of time for the user in question. Once the libraries are imported into the program’s general body, you can make use of both these commands in your program in a manner that suits you best. 

When one implements the goto statement in Python, there needs to be a basic understanding of what they are achieving by implementing it. This philosophy is not just limited to the context of the goto statement but extends to all such commands within Python. Clarity concerning the functionality of the various commands, apart from helping you optimize the code and run time, also immensely improves the overall program’s readability. This, in turn, directly reflects in your competitive coding skills as such.

In the case of the goto statement, whenever a user invokes it, they are instructing the interpreter to execute a line of code, which is different from the one that is on their hands at that moment. The specific block of the code or the line that you want to target for execution is determined by marking it in the section which is popularly referred to as the “label”. Label tags in Python are increasingly random and are generally viewed as arbitrary python identifiers that are prefixed with a single dot. 

Read: Python Project Ideas & Topics

Computed Goto statement

The computed goto statement is one of the most widely used and common variations of the goto statement that a large number of programmers resort to in Python. While using the computed goto statement, the user is required to mention the python index at the beginning of the program or code. Consequently, the user is supposed to refer to the said index by making use of a hashtag. Essentially what you are doing is assigning the name of a label to a variable during runtime itself and then later referencing it, as and when required, with the help of an asterisk. 

Read: Top 6 Data Science Programming Languages

Comefrom statement

Even though the comefrom statement is widely and popularly considered an iteration of the goto statement in Python, upon closer inspection, one realizes that it actually achieves quite the opposite of what the goto statement does. In layman terms and for the convenience of a general reader, comefrom’s function to the interpreter can be best summarised and understood by the following line:

“Whenever label X is reached, jump to here instead.”

As you can see, because the nature of its functionality is similar to that of the goto statement, in the sense that both allow you to skip certain portions and segments of the code, the comefrom statement is considered by most to be an iteration of the goto command. 

Although the actual working of the comefrom statement is best explained with the help of relevant examples, for the purpose of clarity we shall attempt a brief theoretical explanation. one can assume that with the use of comefrom statement, whenever an interpreter reaches the designated label, it ends up skipping the execution of the subsequent line of code. Instead, it directly jumps to the next label within the body of the program. 

An important point to be noted here is that the use of the comefrom statement is by and large made as a debugging aid in programming. Apart from this, the use of the comefrom statement in the larger context of standalone operations is commonly discouraged. This is primarily because making use of the comefrom statement in such a construct often leads to inconvenient and supporting results. 

Also Read: Python GUI Projects

The Goto statement and its restrictions in Python

Most coding platforms generally put a set of restrictions upon the functionalities of commands and other lines of code within their body. In this regard, Python presents no exception, either. It puts a number of restrictions on both the goto statement and its iteration, the comefrom statement. As a result, in the greater scheme of things, both of these commands’ degree of accomplishment remains limited. Some of the most common restrictions that extend to both of these statements are listed below for the ready reference of the future.

  • Even though using the goto command or the comefrom program allows you to skip certain portions and segments of the code, it does not really allow you to jump into the middle of a loop. The final clause in Python is also kept from using either of these statements at any point in time. 
  • At no point in time can the user make active use of the goto or comefrom statements to jump between functions or modules in Python.
  • One can not make use of the goto and comefrom commands to jump into an except line. This is largely because the relevant exception line ceases to exist in the first place. This restriction is largely witnessed when a user has to break out of a deeply nested loop. Alternatively, it is also put to action when there’s a need for cleaning up after something fails. Both of these cases throw ample light upon this particular restriction that Python extends on both the goto as well the comefrom statements. 

Must Read: Top 10 Highest Paying Programming Languages In India

upGrad’s Exclusive Data Science Webinar for you –

Watch our Webinar on The Future of Consumer Data in an Open Data Economy

Conclusion

For the purpose of auditing and debugging, the goto statement in Python along with its iteration, the comefrom statement, present themselves as largely feasible and wonderfully accessible options to the user.

Although both of these statements are mostly used quite sparingly in the context of conventional programming, using it more than often, even while taking into consideration the set of restrictions that it has to deal with, can lead to rather surprising results. 

If you are curious to learn about data science, check out IIIT-B & upGrad’s Executive PG Programme in Data Science which is created for working professionals and offers 10+ case studies & projects, practical hands-on workshops, mentorship with industry experts, 1-on-1 with industry mentors, 400+ hours of learning and job assistance with top firms.

Check out all trending Python tutorial concepts in 2024